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Highway segments with dynamic message signs found to have 16.6 percent fewer crashes than those segments without the signs.
Methodology
The study team analyzed the safety impact of ITS devices on crashes by developing a negative binomial model. The analyses looked at segments with DMS or other ITS devices. The crash…
Content type
Date Posted
01/04/2018
Taxonomy (ARC-IT)
Infrastructure-Based Traffic Surveillance (TM01),
Traffic Information Dissemination (TM06)
Geolocation links
Overall benefit-cost ratio for traffic incident management-oriented ITS program estimated to be 3.16.
Methodology
A traffic microsimulation software package was used to quantify benefits from "with/without" ITS scenarios with regards to freeway incident management based on AADT, ITS device density,…
Content type
Date Posted
06/26/2016
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08),
Infrastructure-Based Traffic Surveillance (TM01),
Traffic Information Dissemination (TM06)
Geolocation links
Use of weather information shows benefit-cost ratios of 1.8 to 36.7, with winter maintenance costs reduced by $272,000 to $814,000.
MethodologyA winter maintenance cost model was established to estimate the materials, labor and equipment for a given maintenance unit (e.g., shed, garage, cost center, or patrol yard) as a function…
Content type
Date Posted
06/22/2011
Taxonomy (ARC-IT)
Winter Maintenance (MC04),
Weather Information Processing and Distribution (WX02),
Weather Data Collection (WX01),
Spot Weather Impact Warning (WX03)
Geolocation links
In Michigan, an evaluation of adaptive cruise control indicated that the technology would improve roadway capacity under conditions of high velocity and short time-headway settings (one second), and reduce road capacity if longer time-headway setting
FINDINGS
The ICC systems improved roadway capacity under conditions of high velocity and short time-headway settings (approximately one second). Alternatively, longer time-headway settings of…
Content type
Date Posted
08/28/2001
Taxonomy (ARC-IT)
Autonomous Vehicle Safety Systems (VS01),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
In Michigan, an analysis of adaptive cruise control indicated that the technology reduced fuel consumption and emissions by limiting throttle fluctuations.
FINDINGSThe ICC systems reduced throttle fluctuations and therefore a reduction in fuel consumption and emissions was observed.
Content type
Date Posted
08/28/2001
Taxonomy (ARC-IT)
Autonomous Vehicle Safety Systems (VS01),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
In Michigan, a survey of test drivers indicated that participants preferred using "adaptive cruise control" over "conventional cruise control" or "manual control" in terms of comfort, convenience, and enjoyment; however, with respect to safety, drive
FINDINGSThe ICC system generally had a very high level of acceptance by the FOT participants.Participants overwhelmingly ranked ICC over the Manual and CCC equipped vehicles for convenience, comfort…
Content type
Date Posted
08/28/2001
Taxonomy (ARC-IT)
Autonomous Vehicle Safety Systems (VS01),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
In Michigan, an evaluation of adaptive cruise control indicated that the technology was effective at reducing risky lane changes in response to slower traffic, but took 0.3 seconds longer than manually controlled vehicles to respond to lead vehicle b
FINDINGSThe ICC-system performed well during controlled experiments on public roadways. The vehicle sensors were able to detect vehicle targets in the specified field of view, maintain set headways…
Content type
Date Posted
08/28/2001
Taxonomy (ARC-IT)
Autonomous Vehicle Safety Systems (VS01),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
Long duration incidents had the greatest opportunities for delay, emissions, and fuel consumption reduction from ITS deployments in Michigan.
Simulations of ITS Benefits
The objective of corridor microsimulation was to quantify detailed benefits resulting from MDOT ITS deployments (DMS, CCTV, detectors, travel time signs, TOCs). In this…
Content type
Taxonomy (ARC-IT)
Infrastructure-Based Traffic Surveillance (TM01),
Traffic Information Dissemination (TM06)
Geolocation links
Add Auxiliary Signage in Conjunction with Driveway Assistance Device Signals to Reduce Potential Driver Confusion over Proper Actions.
Implement auxiliary signage in conjunction with the DAD signal to provide clearer direction on actions drivers need to take. Both the survey and field tests found that including the prominent “WAIT”…
Content type
Date Posted
05/23/2022
Taxonomy (ARC-IT)
Work Zone Management (MC06)
Geolocation links
Understand the Impacts on Public Sector Infrastructure due to Connected Vehicle Deployments
This document captures both detailed and general lessons learned from early deployments of Vehicle to Infrastructure (V2I) roadside infrastructure, but it does not cover on-board vehicle…
Content type
Date Posted
09/30/2013
Geolocation links
Invest in high accuracy road weather information to ensure greater usage and reduce winter maintenance costs.
The case studies collectively showed that winter maintenance costs decreased with increased use of weather information and with improved accuracy. Therefore, agencies should consider expanding the…
Content type
Date Posted
05/25/2011
Taxonomy (ARC-IT)
Infrastructure Monitoring (MC09),
Weather Data Collection (WX01),
Spot Weather Impact Warning (WX03)
Geolocation links
Address critical issues early in the ITS work zone management system development and deployment processes, and allow sufficient start-up time.
The experiences of the four State DOTs examined in this study provide useful lessons for other agencies that are developing or deploying an ITS work zone system. Key strategies for ensuring project…
Content type
Date Posted
08/16/2006
Integrating incident management databases between in-state traffic operations centers could help facilitate evaluation.
The final estimated statewide MDOT ITS deployment BCR is 3.16:1, but the research team believes this estimate can be greatly improved on with the execution of a few recommendations based on both…
Content type
Geolocation links
Annual operating cost of freeway courtesy patrol services in Michigan is $2.3 million.
This report analyzed the costs and benefits of Intelligent Transportation Systems (ITS) deployments by the Michigan Department of Transportation (MDOT). At the time of publication, Michigan had 765…
Content type
Made Public Date
02/09/2016
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
Geolocation links
Weather information costs range from $7,140 to $448,000 annually.
The Iowa Department of Transportation (DOT) and the Aurora Program funded this research project to provide a benefit-cost assessment of weather information in winter maintenance. Most states use a…
Content type
Made Public Date
12/20/2011
Geolocation links
Average operations and maintenance cost of ITS devices (DMS, CCTV, detectors, travel time signs) in Michigan was $8,893 in 2013
The Michigan Department of Transportation (MDOT)’s strategic plan for Intelligent Transportation Systems (ITS) revolves around attaining and demonstrating key mobility, safety, productivity, energy…
Content type
Taxonomy (ARC-IT)
Weather Information Processing and Distribution (WX02),
Traffic Information Dissemination (TM06),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
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