Unit Cost Entry

Unit Cost Element - Dynamic Message Sign (Installed)

Unit Cost Component - Smarter Highways gantry (high estimate)

Washington, United States

Description

Smarter Highways gantry with variable message and speed signs included (high estimate)

Cost Type

Estimated

Data Date

2010

Reported Units

53

Units

Each (EA)

Year (Dollars)

2010

Capital Cost per Unit ($)

$900,000.00

O & M Cost per Unit ($)



Lifetime

years


Notes

WSDOT estimates are for their entire inventory, purchased over several years

Source

The Congestion Report Gray Notebook Special Edition WSDOT’s comprehensive analysis of system performance on state highways,

Published By: Washington State DOT

URL: http://www.wsdot.wa.gov/a
ccountability/congestion/
2010.htm

Unit Cost Details

Capital Cost per Unit: $900,000.00

O&M Cost per Unit:

Year (Dollars): 2010

Lifetime: years

Benefits From This Source

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.

Conversion of an HOV lane to a HOT lane in Washington State allowed for a 3 to 19 percent increase in speeds in general purpose lanes despite a 2 to 3 percent increase in volumes in the general lanes.

In 2009, the Washington State DOT Incident Response Team was able to clear 98 percent of incidents in under an hour and nearly three quarters in less than 15 minutes.

Application Areas

Intelligent Transportation Systems > Traffic Incident Management > Information Dissemination > Dynamic Message Signs

Intelligent Transportation Systems > Freeway Management > Lane Management > Lane Control

Intelligent Transportation Systems > Freeway Management > Lane Management > Variable Speed Limits

Intelligent Transportation Systems > Freeway Management > Information Dissemination > Dynamic Message Signs

Related Unit Cost Subsystems

Roadside Information (RS-I)

Keywords

DMS, CMS, VMS, Changeable Message Signs, Variable Message Signs, managed lanes, VSL

ID: 2012-02389