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Roadway Operations & Maintenance > Work Zone Management > Lane Control


Lane control signs, portable dynamic message signs, and other applications assist work zone managers in notifying drivers of changing lane configurations within work zones.


Utah DOT installed 10 Bluetooth readers for $40,000 to monitor work zone traffic conditions during a nine month project. O&M was estimated at $33,000.(01/01/2014)

The cost to implement and operate a dynamic lane merge system for 11 weeks was estimated at $57,108.(September 2007)

Minnesota DOT deployed a dynamic late merge system for $900 per day per direction.(September 12, 2005)

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)

Michigan DOT leased a dynamic lane merge system for I-94 reconstruction project at a cost of $120,000.(October 2004)

The Arkansas State Highway and Transportation Department (AHTD) leased an automated work zone information system in West Memphis for $495,000 which was less than 4% of the total recontruction project cost. West Memphis is one of four locations highlighted in a cross cutting study.(November 2002)

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In Kalamazoo Michigan, the activation of the Dynamic Lane Merge System in a work zone reduced the number of forced merges seven fold and reduced the number of dangerous merges three fold.(October 2008)

A dynamic late lane merge system reduced vehicle emissions by 15.7 percent at a highway work zone in southern Michigan.(September 2007)

A dynamic late lane merge system decreased vehicle stops by 47 percent at a highway work zone in southern Michigan.(September 2007)

An automated work zone information system (AWIS) greatly reduced traffic demand through a highway work zone in California resulting reducing maximum average peak delay 50 percent more than expected.(22-26 January 2006)

During lane closures in the Minneapolis/St. Paul region a dynamic late merge system reduced confusion and aggressive driving, decreased queue lengths, and reduced congestion.(28 December 2004)

A dynamic lane merge system deployed at a work zone outside Detroit reduced aggressive driving maneuvers.(October 2004)

A dynamic lane merge system deployed in a work zone outside Detroit increased PM peak travel speeds by 15 percent, no change in AM peak speeds.(October 2004)

A dynamic lane merge system deployed outside Detroit was found to be cost-effective based on an analysis of system cost and motorist time and fuel savings.(October 2004)

The Illinois DOT enhanced work zone safety on I-55 by deploying an automated traffic control system that posted traffic information and enforcement updates (number of citations issued) on dynamic message signs located upstream of the work zone.(October 2004)

The Illinois DOT staff reported a high level of satisfaction with the automated traffic control system deployed during the reconstruction of Interstate 55.(October 2004)

The Illinois DOT reduced operating costs during the reconstruction of I-55 by deploying an automated traffic control system and eliminating the need for constant traffic monitoring.(October 2004)

The Illinois DOT indicated that an automated traffic control system deployed during the reconstruction of I-55 improved mobility by preventing severe congestion in the work zone. (October 2004)

In Albuquerque, New Mexico, work zone surveillance and response at the "Big I" Interchange reduced average clearance time by 44 percent.(4-7 June 2001)

During the first year of operations at the "Big I" work zone in Albuquerque, temporary traffic management and motorist assistance patrols reduced the average incident response time to less than eight minutes, and no fatalities were reported.(4-7 June 2001)

Plan adequate time to calibrate Bluetooth readers to maximize accuracy and reliability.(01/01/2014)

Utah DOT installed 10 Bluetooth readers for $40,000 to monitor work zone traffic conditions during a nine month project. O&M was estimated at $33,000.(01/01/2014)

Utah DOT installed 10 Bluetooth readers for $40,000 to monitor work zone traffic conditions during a nine month project. O&M was estimated at $33,000.(01/01/2014)

Use either a late lane merge system or an early lane merge system, but not both, based on agency goals and objectives for improving work zone operations. (September 2007)

Coordinate extensively with other stakeholder agencies.(1/1/2004)

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)

Place portable changeable message signs (CMS) on the shoulder or median nearest the discontinuous lane when implementing a dynamic late merge system (DLMS) to manage a work zone.(10/1/2003)