Knowledge Resources

Agencies that manage multimodal transportation corridors can use AMS methodology with ICM decision support systems to facilitate predictive, real-time, and scenario-based decision-making.(12/01/2016)

Future ICM systems will require new technical skill sets. Involve management across multiple levels to help agencies understand each other’s needs, capabilities, and priorities.(06/30/2015)

Avoid using blank messages on dynamic message signs (DMS) including dashes for travel time applications as drivers may not understand these signs or assume they are broken.(December 2012)

Consider implementing interim traffic management systems (ITMS) for long-term construction projects.(July 31, 2011)

Using Analysis, Modeling, and Simulation (AMS) to Determine if Integrated Corridor Management (ICM) can Improve Corridor Operations(September 2010)

Enhance traffic flow in a regional, multi-state corridor by using vehicle probes to monitor real-time traffic conditions. (August 12, 2010)

Use vehicle probes to monitor traffic cost-effectively, manage incidents and queue ups proactively, reduce delays, and increase traveler satisfaction along a multi-state transportation corridor.(August 12, 2010)

Ensure proper placement of variable speed limit (VSL) signs in a work zone and operate the VSL system consistently on a long term basis.(03/01/2010)

In developing software for automated posting of messages on dynamic message signs, focus on the types of messages that are used often and changed frequently, and also include manual methods for posting.(01/30/2009)

Use Analysis, Modeling, and Simulation (AMS) to identify gaps, determine constraints, and invest in the best combination of Integrated Corridor Management (ICM) strategies.(September 2008)

Prepare in advance for severe weather by staffing enough snow plow operators and ensuring that public information systems will be updated with current weather and road conditions.(March 27, 2007 )

Draw on the strengths of complementary relationships between the public and private sectors for successful implementation of ITS projects.(August 2006)

Build a strong partnership between transportation and public safety agencies, and establish clear operational rules from the start.(July 2006)

Adopt best practices for integrating emergency information into Transportation Management Center (TMC) operations to improve performance and increase public mobility, safety and security.(2/28/2006)

Invest in research and development for emergency integration.(2/28/2006)

Extend the application of emergency integration best practices to further improve emergency operations.(2/28/2006)

Integrate weather information into Transportation Management Center (TMC) operations to enhance the ability of operators to manage traffic in a more responsive and effective way during weather events.(2/28/2006)

Consult with traffic engineers early in the process of no-notice evacuations to secure the use of traffic management resources and to identify routes for evacuation and re-entry.(February 2006)

Develop a user-oriented system for displaying travel time messages on dynamic messages signs. (May, 2005)

Optimize travel time messaging operations by improving the way in which data is collected, analyzed, and displayed. (May, 2005)

Treat maintenance staff as customers and beneficiaries of ATIS information.(5/1/2005)

Treat system operators as the client and consider their perspectives during ATIS project development.(5/1/2005)

Consider how implementing an ATIS system will impact staffing and training requirements.(5/1/2005)

Consider that ATIS deployment in rural and/or remote areas presents special challenges.(5/1/2005)

Provide drivers with sufficient managed lane information that can be easily disseminated and understood. (2005)

Consider changeable message sign (CMS) positioning, data archive requirements, and traffic demand when considering deployment of a dynamic late merge system.(28 December 2004)

Follow accepted guidelines to create concise, effective messages to communicate to the public using Dynamic Message Signs (DMS).(August 2004)

Use recommended practices to provide accurate travel time messages to the public using Dynamic Message Signs (DMS).(7/16/2004)

Limit CMS message length to allow for adequate reading time at high speeds.(5/27/2004)

Strike a balance between CMS content and the driver's ability to read at 65 mph when posting AMBER alerts.(5/27/2004)

Use ITS to implement a reliable communications system in work zones.(1/1/2004)

Ensure initial and ongoing success of ITS deployments by providing sufficient start-up time, maintaining flexibility, and performing maintenance needs in-house.(1/1/2004)

Effectively communicate plans for implementing contraflow lanes during a hurricane evacuation.(11/1/2003)

Adopt adequate and thorough procurement processes which cover purchases of both standardized commodity type equipment and highly complex integrated ITS components.(9/23/2003)

Consider potential system enhancements to meet heavy demand.(4/1/2003)

Define your agency's expectations of a new system and a robust set of system requirements and then choose the software that meets your requirements.(4/1/2003)

Deploy ITS systems strategically to achieve benefits.(6/1/2001)

Integrate freeway and alternate route operations to achieve greater benefits.(6/1/2001)

Use ITS Standards to achieve interchangeability and interoperability for Dynamic Message Signs.(Spring 2001)

Consider reconfiguring and integrating existing roadway management IT systems whenever possible to save costs associated with implementing new systems.(10/1/2000)

Follow a modular approach when deploying complex projects in locations with a shortened construction season.(April 2000)

Follow a modular approach when deploying complex projects in locations with a shortened construction season.(April 2000)

Provide consistent and high-quality information to influence traveler behavior.(6/1/1998)

An implementation of proactive variable speed limits (VSL) was simulated to reduce critical traffic conditions by 39 percent.(February 2018)

Expanding permanent DMS operations to include information on I-70 work zones has a benefit-to-cost ratio of 6.9:1.(December 2013)

Bluetooth readers used to provide non-route specific travel time information on DMS were found useful by 76 percent of travelers surveyed.(04/01/2013)

When link travel times posted on DMS are twice as long as typical travel times, drivers begin to favor alternate routes.(09/27/2012)

Decision Support System scenarios modeled on the ICM Corridor in Dallas Texas show travel time savings of 9 percent on arterials when vehicles divert from the freeway.(August 1, 2012)

Ninety-four percent of travelers took the action indicated by the DMSs in rural Missouri and drivers were very satisfied by the accuracy of the information provided.(December 2011)

Rural DMSs providing detour information for a full, 3 day bridge closure provided over $21,000 in benefits to motorists in Missouri.(December 2011)

Vehicle speeds decreased significantly in work zones where DMSs were used to inform drivers upstream.(December 2011)

In St. Louis County, Missouri, full closure of portions of I-64 for two years allowed for an accelerated construction schedule, saving taxpayers between $93 million and $187 million.(November 2011)

Benefit-to-cost ratios for six dynamic message signs on two freeways ranged from 1.38:1 to 16.95:1 based on total crashes; however, hazard warnings posted during incidents were ineffective at reducing secondary crashes.(12/17/2010)

Collisions on I-5 in Washington State have been reduced by 65-75 percent in a 7.5 mile corridor where an active traffic management system was deployed.(November 19, 2010)

Simulated deployment of Integrated Corridor Management (ICM) technologies on the I-394 corridor in Minneapolis show a benefit-cost ratio of 22:1 over ten years.(November 2010)

New York State DOT TMC operators and New York State Thruway Authority staff were able to reduce traffic queues by 50 percent using vehicle probe data available through the I-95 Corridor Coalition.(August 12, 2010)

Changeable Message Signs in the Bay Area that displayed highway and transit trip times and departure times for the next train influenced 1.6 percent of motorists to switch to transit when the time savings was less than 15 minutes, and 7.9 percent of motorists to switch to transit when the time savings was greater than 20 minutes.(September 2009)

Integrated Corridor Management (ICM) strategies that promote integration among freeways, arterials, and transit systems can help balance traffic flow and enhance corridor performance; simulation models indicate benefit-to-cost ratios for combined strategies range from 7:1 to 25:1.(2009)

In Houston, a survey of motorists found that 85 percent of respondents changed their route after viewing real-time travel time information on freeway dynamic message signs.(May 2005)

Deployment experiences document the importance of traveler information and list top sources of traveler information.(2005)

In Southeast Pennsylvania, survey results indicated that users of the SmarTraveler website were more likely to use the service again compared to users of the SmarTraveler telephone service.(19-22 May 2003)

On the Køge Bugt Motorway in Copenhagen, Denmark, travel times and alternative route information posted on dynamic message signs prompted 12 to 14 percent of drivers to divert onto less congested alternative routes.(8 April 2003)

A survey of motorists in Copenhagen, Denmark, found that 80 percent of respondents were satisfied with variable speed limits and the traveler information posted on dynamic message signs.(8 April 2003)

During the 2002 Winter Olympic Games in Salt Lake City, Utah, a survey about the CommuterLink Web site showed that 98 percent of visitors and 97 percent of residents who used the Web site said it worked well for them(April 2003)

Evaluation of Variable Message Signs in Wisconsin: Driver Survey(May 2002)

Simulations indicated that using a decision support tool to select alternative traffic control plans during non-recurring congestion in the Disney Land area of Anaheim, California could reduce travel time by 2 to 29 percent and decrease stop time by 15 to 56 percent. (December 2001)

A simulation study of existing ITS (traveler information, ramp metering, and DMS) on a Detroit freeway demonstrated how these technologies can increase average vehicle speed, decreased average trip time, and reduce commuter delay by as much as 22 percent.(July 2001)

A simulation study of existing ITS (traveler information, ramp metering, and DMS) on a Detroit freeway demonstrated how these technologies were beneficial to corridor capacity.(July 2001)

A model indicated that an advanced transportation management and traveler information system serving northern Kentucky and Cincinnati reduced crash fatalities by 3.2 percent during peak periods.(4-7 June 2001)

Modeling indicated that an advanced transportation management and traveler information system serving northern Kentucky and Cincinnati reduced delay by 0.2 minutes per trip during AM peak periods and by 0.6 minutes during PM peak periods. (4-7 June 2001)

Modeling found emissions reductions of 3.7 to 4.6 percent due to an advanced transportation management and traveler information system serving northern Kentucky and Cincinnati.(4-7 June 2001)

A simulation study of the road network in Seattle, Washington demonstrated that providing information on arterials as well as freeways in a traveler information system reduced vehicle-hours of delay by 3.4 percent and reduced the total number of stops by 5.5 percent.(6-9 November 2000)

A simulation study of the road network in Seattle, Washington demonstrated that providing information on arterials as well as freeways in a traveler information system increased throughput by 0.1 percent.(6-9 November 2000)

Simulation revealed that a freeway management system in Fargo, North Dakota could reduce network travel times by 8 percent and increase speeds by 8 percent when DMS are used to warn drivers of incidents.(6-10 August 2000)

In Arizona and Missouri a survey of tourists found that those who used advanced traveler information systems believed the information they received save them time.(30 June 2000)

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that integrating DMS, incident management, and arterial traffic control systems could reduce delay by 5.9 percent.(May 2000)

Evaluation indicated that integrating DMS and incident management systems could reduce crashes by 2.8 percent, and that integrating DMS and arterial traffic control systems could decrease crashes by 2 percent, in San Antonio, Texas.(May 2000)

In San Antonio, Texas, focus group participants felt that DMS were a reliable source of traffic information.(May 2000)

Evaluation of freeway DMS integrated with incident management in San Antonio, Texas, found fuel consumption reduced by 1.2 percent; integrating the DMS with arterial traffic control systems could save 1.4 percent. (May 2000)

An evaluation of traffic information used by travelers in the Detroit area, in 2000, found that most drivers perceived commercial radio as "more reliable" than television or dynamic message sign information. (May 2000)

A survey of drivers in Glasgow, Scotland, found that 40 percent changed route due to DMS recommendations.(January 2000)

A simulation study indicated that vehicle throughput would increase if arterial data were integrated with freeway data in an Advanced Traveler Information System in Seattle, Washington. (September 1999)

A simulation study indicated that integrating traveler information with traffic and incident management systems in Seattle, Washington could reduce emissions by 1 to 3 percent, lower fuel consumption by 0.8 percent, and improve fuel economy by 1.3 percent.(September 1999)

A simulation study indicated that integrating traveler information with traffic and incident management systems in Seattle, Washington could diminish delay by 1 to 7 percent, reduce stops by about 5 percent, lower travel time variability by 2.5 percent, and improve trip time reliability by 1.2 percent.(September 1999)

It was estimated that variable speed limit signs and lane control signals installed on the autobahn in Germany would generate cost savings due to crash reductions that would be equal to the cost of the system within two to three years of deployment. (August 1999)

Advanced traffic management systems in the Netherlands and Germany reduced crash rates by 20 to 23 percent.(August 1999)

In Japan, real-time alternative-route travel time information posted on dynamic message signs contributed to a 3.7 percent divergence rate during periods of congestion, saving detoured motorists an average of 9.8 minutes per vehicle.(12-16 October 1998)

Evaluation Report for ITS for Voluntary Emission Reduction: An ITS Operational Test for Real-Time Vehicle Emissions Detection(May 1997)

In Toronto, the COMPASS traffic monitoring and incident information dissemination system on Highway 401 decreased the average incident duration from 86 to 30 minutes per incident.(1997)

In Long Island, New York, ramp metering and traveler information increased freeway speeds by 13 percent despite an 5 percent increase in vehicle-miles traveled during PM peak periods.(January 1992)

System costs for roadside traveler information systems were projected for upstate California; installation of changeable message signs (CMS) and mounting structures were estimated at $140K to $300K per site.(06/14/2019)

Statewide annual O&M for 410 CCTV cameras and 139 DMS units was estimated at $525,685 and $233,037, respectively.(10/23/2014)

A Bluetooth travel time detection system with seven detectors was integrated into a DMS roadside traveler information system for $90,000.(04/01/2013)

Bluetooth readers used to provide non-route specific travel time information on DMS were found useful by 76 percent of travelers surveyed.(04/01/2013)

Bluetooth readers used to provide non-route specific travel time information on DMS were found useful by 76 percent of travelers surveyed.(04/01/2013)

Six replacement dynamic message signs with remote activation capability cost $321,000 to procure and install in Idaho.(February 7, 2013)

The cost to install six dynamic message signs on two freeways in North Carolina was estimated at $1,980,000.(12/17/2010)

Costs to deploy an Integrated Corridor Management (ICM) system in Minneapolis for ten years is estimated at $3.96 million.(November 2010)

Implementing Integrated Corridor Management (ICM) strategies on the I-15 Corridor in San Diego, California is estimated to cost $1.42 million annualized and a total 10-year life-cycle cost of $12 million.(September 2010)

I-70 Corridor ITS Study identifies system costs for several technology applications.(June 2010)

The Arizona DOT installed a freeway management system to control and monitor traffic on I-10 and I-19 within the City of Tucson for approximately $3.1 million (2009).(02/01/2010)

The Arizona DOT installed a freeway management system to control and monitor traffic on an 7.5-mile section of Loop 101 in the area of Scottsdale/Phoenix for approximately $1.6 million (2009).(01/27/2010)

In Washington state, the Mount St. Helens traveler information system was installed at a cost of $499,526.(June 2009)

In central Washington state, the cost of deploying two variable message signs (VMS) on westbound Interstate 90 was $660,000.(June 2009)

In central Washington state, the cost of deploying two variable message signs (VMS) on westbound Interstate 90 was $660,000.(June 2009)

In Washington State, the implementation of the SR 14 Traveler Information System cost $511,300(June 2009)

In Yakima, Washington, the deployment of a Traveler Information System cost $333,000.(June 2009)

In Washington State, a traveler information system was installed between the Washington-Oregon border at a cost of $358,000.(June 2009)

Planning-level studies indicate that an effective combination of ICM strategies can be implemented for $7.5 Million per year (annualized capital and O&M).(September 2008)

Florida DOT District IV 2006 budget supports a variety of SMART SunGuide transportation management center programs.(January 2007)

Florida DOT District IV 2005 budget supports a variety of SMART SunGuide transportation management center programs.(31 January 2006)

The cost of O&M at the Arizona TMC was estimated at $2 million per year.(January 2006)

The annualized life-cycle costs for full ITS deployment and operations in Tucson were estimated at $72.1 million. (May 2005)

A modeling study evaluated the potential deployment of full ITS capabilities in Cincinnati. The annualized life-cycle cost was estimated at $98.2 million.(May 2005)

The annualized life-cycle costs for full ITS deployment and operations in Seattle were estimated at $132.1 million.(May 2005)

TMC central hardware costs can exceed $200,000 if regional communications and system integration are required.(5 August 2004)

The $106 million capital cost for CommuterLink - the Salt Lake City, Utah advanced transportation management system - includes numerous components such as a signal system, ramp metering, traveler information dissemination, traffic surveillance and monitoring, and fiber optic network.(March 2004)

In Lake County, Illinois, TMC physical components cost $1.8 million.(September 2003)

Life cycle cost of four options for a communications network connecting ITS field devices to the Illinois DOT District 8 Traffic Operations Center range from $43 million to $52.5 million.(May 2003)

The integrated freeway/incident management system covering 28.9 miles in San Antonio was deployed for approximately $26.6 million.(May 2000)

The costs of the Integrated Corridor Management Project (ICTM), deployed on an 8-mile section of the I-494 transportation corridor south of the Twin Cities in Minnesota, was $9 million.(April 2000)

DMS Support Structure - Capital cost/unit - $40000 - O&M cost/unit - $5000(06/14/2019)

DMS Support Structure - Capital cost/unit - $40000 - O&M cost/unit - $5000(06/14/2019)

Dynamic Message Sign (DMS) Sign - Capital cost/unit - $40000 - O&M cost/unit - $5000(06/14/2019)

Dynamic Message Sign (DMS) Sign - Capital cost/unit - $40000 - O&M cost/unit - $5000(06/14/2019)

DMS Support Structure - Capital cost/unit - $108500(07/01/2018)

DMS Communications and Power Connection - Capital cost/unit - $108500(07/01/2018)

Dynamic Message Sign (DMS) - Capital cost/unit - $108500(07/01/2018)

Service Meter Cabinet - Capital cost/unit - $35(10/19/2017)

Electrical Conduit - Capital cost/unit - $35(10/19/2017)

Dynamic Message Sign - Capital cost/unit - $35(10/19/2017)

Fiber Optic Termination Panel - Capital cost/unit - $35(10/19/2017)

Dynamic Message Sign Controller - Capital cost/unit - $35(10/19/2017)

Dynamic Message Sign - Capital cost/unit - $35(10/19/2017)

Dynamic Message Sign - Capital cost/unit - $35(10/19/2017)

Electrical Pull Box - Capital cost/unit - $35(10/19/2017)

Service Meter Cabinet - Capital cost/unit - $35(10/19/2017)

Cellular Modem - Capital cost/unit - $35(10/19/2017)

Dynamic Message Sign - Capital cost/unit - $35(10/19/2017)

Electrical Conduit - Capital cost/unit - $35(10/19/2017)

DMS - Capital cost/unit - $120065(10/25/2016)

DMS - Capital cost/unit - $135983.4(10/25/2016)

DMS - Capital cost/unit - $125729(10/25/2016)

DMS - Capital cost/unit - $118944.4(10/25/2016)

Dynamic Message Sign (DMS) Installation Work - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) Maintenance Parts - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) O&M - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) O&M Training - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) - Capital cost/unit - $2(05/06/2014)

Electrical Service - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) Maintenance Parts - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) Installation Work - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) O&M Training - Capital cost/unit - $2(05/06/2014)

Dynamic Message Sign (DMS) O&M - Capital cost/unit - $2(05/06/2014)

Electrical Service - Capital cost/unit - $2(05/06/2014)

Maintain DMS - O&M cost/unit - $750(10/29/2013)

Remove and Reinstall DMS - O&M cost/unit - $750(10/29/2013)

Maintain DMS - O&M cost/unit - $750(10/29/2013)

DMS Electrical Work - O&M cost/unit - $750(10/29/2013)

DMS Electrical Work - O&M cost/unit - $750(10/29/2013)

DMS Electrical Work - O&M cost/unit - $750(10/29/2013)

Remove and Reinstall DMS - O&M cost/unit - $750(10/29/2013)

Remove and Reinstall DMS - O&M cost/unit - $750(10/29/2013)

Remove and Reinstall DMS - O&M cost/unit - $750(10/29/2013)

Maintain DMS - O&M cost/unit - $750(10/29/2013)

Maintain DMS - O&M cost/unit - $750(10/29/2013)

DMS Electrical Work - O&M cost/unit - $750(10/29/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

DMS Electrical Work - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

DMS Electrical Work - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message (DMS) - Capital cost/unit - $60.51(05/30/2013)

Dynamic Message Sign - Capital cost/unit - $175000(April 1, 2013)

Dynamic Message Sign - Capital cost/unit - $53500(February 7, 2013)

DMS support structure - Capital cost/unit - $5000(2/4/2013)

Communications equipment - shelter - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Communications wireless - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

DMS support structure - Capital cost/unit - $5000(2/4/2013)

Communications equipment - shelter - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

DMS support structure - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

DMS support structure - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Communications equipment - shelter - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

DMS support structure - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Communications equipment - cabinet - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic message sign - Capital cost/unit - $5000(2/4/2013)

Dynamic Message Sign Cabinet - Capital cost/unit - $202943.95(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Foundation - Capital cost/unit - $202943.95(2013)

Wireless Communciations Link - Capital cost/unit - $564.39(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Dynamic Message Sign - Capital cost/unit - $136159.18(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $202943.95(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

Dynamic Message Sign Controller - Capital cost/unit - $202943.95(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $202943.95(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

DMS - Capital cost/unit - $579.6(2013)

Install Dynamic Message Sign - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $16513.52(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

DMS - Capital cost/unit - $579.6(2013)

LED Traffic Sign - Capital cost/unit - $579.6(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Dynamic Message Sign - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Dynamic Message Sign Cabinet - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $16513.52(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

DMS - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Electrical Power Service - Capital cost/unit - $136159.18(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $202943.95(2013)

Dynamic Message Sign Tower - Capital cost/unit - $202943.95(2013)

Install Dynamic Message Sign - Capital cost/unit - $579.6(2013)

Dynamic Message Sign Assembly - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign Tower - Capital cost/unit - $202943.95(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $92080(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Electrical Power Service - Capital cost/unit - $202943.95(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign Tower - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $115000(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $136159.18(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $83247(2013)

Dynamic Message Sign - Capital cost/unit - $579.6(2013)

Dynamic Message Sign - Capital cost/unit - $16513.52(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Wireless Communications Link - Capital cost/unit - $3130(2013)

Dynamic Message Sign - Capital cost/unit - $84076(2013)

Dynamic Message Sign - Capital cost/unit - $350000(01/01/2012)

DMS Communciations Uprade - Capital cost/unit - $4850(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

DMS Support Structure Foundation - Capital cost/unit - $9500(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

DMS Support Structure - Capital cost/unit - $9500(01/01/2012)

Dynamic Message Sign - Capital cost/unit - $115000(01/01/2012)

Dynamic Message Sign - Capital cost/unit - $115000(01/01/2012)

DMS Communciations Uprade - Capital cost/unit - $4850(01/01/2012)

Dynamic Message Sign - Capital cost/unit - $115000(01/01/2012)

Dynamic Message Sign - Capital cost/unit - $350000(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

Dynamic Message Sign - Capital cost/unit - $115000(01/01/2012)

DMS Support Structure - Capital cost/unit - $9500(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

DMS Support Structure Foundation - Capital cost/unit - $9500(01/01/2012)

Install Dynamic Message Sign - Capital cost/unit - $28837(01/01/2012)

Smarter Highways gantry (high estimate) - Capital cost/unit - $650000(November 19, 2010)

Smarter Highways gantry (low estimate) - Capital cost/unit - $650000(November 19, 2010)

Variable Message Signs (low estimate) - Capital cost/unit - $650000(November 19, 2010)

Variable Message Signs (high estimate) - Capital cost/unit - $650000(November 19, 2010)

Changeable Message Sign (CMS) - Capital cost/unit - $145872 - Lifetime - 25 years(2007)

Changeable Message Sign (CMS) Tower - Capital cost/unit - $145872 - Lifetime - 25 years(2007)

Extinguishable Message Sign (EMS) - Capital cost/unit - $145872 - Lifetime - 25 years(2007)

Dynamic Message Sign and Support Structure - Capital cost/unit - $162000(April 2010)

Dynamic Message Sign and Support Structure - Capital cost/unit - $223000(April 2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign (DMS) Spare Parts - Capital cost/unit - $74000(02/25/2010)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Dynamic Message Sign - Capital cost/unit - $108400(2/12/2013)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Electrical Supply Load Center Cabinet - Capital cost/unit - $4000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $4000(02/01/2010)

Variable Message Sign - Capital cost/unit - $10000(02/01/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $700(01/27/2010)

Control Cabinet Foundation - Capital cost/unit - $783(01/27/2010)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

Dynamic Message Sign - Capital cost/unit - $98209.29(2009)

FIBER TRANSCEIVER SIGN - Capital cost/unit - $98000(03/21/2008)

FIBER TRANSCEIVER SIGN - Capital cost/unit - $98000(03/21/2008)

VARIABLE MESSAGE SIGN-DYNAMIC - Capital cost/unit - $98000(03/21/2008)

FIBER TRANSCEIVER SIGN - Capital cost/unit - $98000(03/21/2008)

VARIABLE MESSAGE SIGN-DYNAMIC - Capital cost/unit - $98000(03/21/2008)

VARIABLE MESSAGE SIGN-DYNAMIC - Capital cost/unit - $98000(03/21/2008)

VARIABLE MESSAGE SIGN-DYNAMIC - Capital cost/unit - $98000(03/21/2008)

FIBER TRANSCEIVER SIGN - Capital cost/unit - $98000(03/21/2008)

Conduit - Capital cost/unit - $18.25(January 2008)

Junction Box - Capital cost/unit - $18.25(January 2008)

Dynamic Message Sign - Capital cost/unit - $18.25(January 2008)

Dynamic Message Sign - Capital cost/unit - $98209.29(2008)

Dynamic Message Sign - Capital cost/unit - $18.25(January 2008)

VARIABLE MESSAGE SIGN-DYNAMIC - Capital cost/unit - $15000(8/24/2007)

Fiber Optic Cable - Capital cost/unit - $15000(8/24/2007)

Fiber Optic Cable - Capital cost/unit - $15000(8/24/2007)

VARIABLE MESSAGE SIGN-DYNAMIC SIDE MOUNT - Capital cost/unit - $15000(8/24/2007)

CONDUIT-2 INCH - Capital cost/unit - $15000(8/24/2007)

Communication Cable - Capital cost/unit - $1000(8/24/2007)

Fiber Optic Cable - Capital cost/unit - $15000(8/24/2007)

CONDUIT-2 INCH - Capital cost/unit - $15000(8/24/2007)

VARIABLE MESSAGE SIGN-DYNAMIC SIDE MOUNT - Capital cost/unit - $15000(8/24/2007)