Roadside Detection (RS-D)

General Description:

Roadside Detection is a general term for any type of ITS technology that detects vehicles and relays information for processing.  Examples of typical roadside detection include inductive loop detectors, closed circuit television, infrared and microwave sensors and acoustic sensors.  When used in conjunction with Highway Advisory Radio, Variable Message Signs, Dynamic Message Signs, or any other information source, motorists can be informed of important information.

Effects of Solution:

¨ Increase Passenger Throughput

¨ Increase Roadway Capacity

¨ Manage System Efficiency

¨ Reduce Local Demand

Roadside Detection is not a solution in itself, but needs additional components to help manage system efficiency and reduce local demand. 

Examples of Implementation:

See fact sheets with specific technologies for examples.

Cost/Financial Information:

Source: United States Department of Transportation Intelligent Transportation Systems ITS Benefits, Costs and Lessons Learned Databases.  Available at http://www.benefitcost.its.dot.gov (Cost/financial information is estimated, and will vary based on size and scope of project, number of units, etc.)

	Capital Cost	Operating Cost
CCTV Video Camera	$9-19K	$1.0-2.3K
CCTV Video Camera Tower	$4-12K
Environmental Sensing Station	$30-50K	$1.9-4.1K
Inductive Loop – Corridor	$3-8K	$.5-.8K
Inductive Loop – Intersection	$9-16K	$1-1.6K
Infrared Sensor – Active	$6-7.5K
Infrared Sensor – Passive	$.7-1.2K
Machine Vision Sensor	$22-29K	$.2-.4
Passive Acoustic Sensor – Corridor	$4-8K	$.2-.4K
Pedestrian Detection – Microwave	$.6K
Pedestrian Detection – Infrared	$.3-.5K
Portable Speed Monitoring System	$5-15K
Remote Traffic Microwave Sensor	$9-13K	$.1-.58K

Additional Resources:

Benefit Cost website:

http://www.benefitcost.its.dot.gov

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