Utah DOT Deployed a Dedicated Short-Range Communications Corridor Supporting Transit Signal Priority Controls For a Total Cost of $575,900.

The Deployment of the DSRC Corridor in Salt Lake City Offers a Cost Breakdown for the Installation of Hardware and Software.

Made Public Date
09/26/2021

828

Salt Lake City
Utah
United States
Identifier
2021-00495
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Summary Information

Utah DOT developed a project based on the initial 2016 deployment of a full Dedicated Short-Range Communications (DSRC) corridor that supported transit signal priority (TSP) controls to leverage connected and automated vehicle (CAV) technology. The deployment site is located along Redmond Road, an 11-mile urban corridor with 30 signalized intersections located in Salt Lake City. The deployment installed 24 of the 30 Intersections with DSRC. Additionally, Onboard communication devices were installed on transit vehicles to support the TSP system.

The project aimed to collect bus data along the DSRC corridor to evaluate the efficiency of the technology's investment and perform a benefit-cost (B/C) analysis. Moreover, this project integrated adaptive traffic  and signal coordination controls into the existing system to optimize signal timing at the intersection level and offset at the corridor level. A microscopic simulation environment based on the DSRC corridor was developed to evaluate the potential effects of the proposed signal control system.

Table 1 includes a breakdown of the system costs for the DSRC corridor. 

Category

Component

Costs ($)

 

 

Hardware Costs

Roadside Units (RSU)    

73,000

On-board Units (OBU) 

22,000

On-board Processors (OBP)

3,700

Misc. hardware (brackets, cables, SDK, shipping)

15,000

 

 

Software Costs

Modifications of Multi-Modal Intelligent Traffic Signal Systems

17,800

Peer-to-peer feature

10,400

Hardware Interoperability

118,000

User Interface

59,000

Other Costs

Installation/Integration/Coordination

153,000

Project evaluation

104,000

Total   575,900

*The annual maintenance cost per unit is determined as $1,000 based on a report presented by the National Cooperative Highway Research Program (NCHRP).

 

System Cost

Deployment cost (excluding maintenance) of a 24 Intersection DSRC Corridor: $575,900 (in 2020 US Dollars)

System Cost Subsystem