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Iowa DOT estimates that AV adoption could reduce crash rates up to 65 percent on the I-80 corridor.
FINDINGS
At a 25 percent AV adoption rate, the analysis found a reduction in the incidence of total crashes of approximately 20 percent. At a 85 percent adoption rate, this reduction was…
Content type
Date Posted
09/12/2018
Taxonomy (ARC-IT)
Cooperative Adaptive Cruise Control (VS14),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
Officer-generated crash reports received electronically into the statewide crash database increased to 68 percent from 47 percent as a result of making data reporting and analysis tools available to local law enforcing agencies.
FINDINGSThe project successes include Increased percentage of motor vehicle crash reports received electronicallyImproved data qualityData being available to users is more timely for data driven…
Content type
Date Posted
11/13/2013
Taxonomy (ARC-IT)
ITS Data Warehouse (DM01),
Data Distribution (SU03),
Map Management (SU04),
Object Registration and Discovery (SU06),
Management of Electronic Traffic Regulations (METR) (VS17)
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
Final Report of the FORETELL Consortium Operational Test: Weather Information for Surface Transportation
SURVEY METHODS
Surveys were collected before and after deployment to determine the impact of FORETELL on the individual weather-related activities of users. In November 1999, baseline data were…
Content type
Date Posted
01/06/2004
Taxonomy (ARC-IT)
Freight-Specific Dynamic Travel Planning (CVO09),
Road Weather Information for Freight Carriers (CVO10),
Roadway Automated Treatment (MC03),
Personalized Traveler Information (TI02),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Weather Data Collection (WX01),
Infrastructure Monitoring (MC09)
In Iowa, a CB radio alert system designed to warn truckers of slow moving maintenance vehicles on freeways effectively warned 39 of 59 truckers interviewed that remembered seeing the maintenance work in-progress.
Notes:This study is a part of series of studies caried out for the Midwest Smart Work Deployment Initiative.
Content type
Date Posted
01/01/2003
Taxonomy (ARC-IT)
Work Zone Management (MC06),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
Make data reporting and analysis tools available to local law enforcement agencies to improve the volume and quality of traffic records system data.
The project was successful in increasing the percentage of motor vehicle crash reports received electronically, improving data quality and increasing the timeliness of data available to users for…
Content type
Date Posted
12/17/2013
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09)
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
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
Costs data available for several advanced winter maintenance technologies: automatic vehicle location (AVL) range from $1,250 to $5,800 per vehicle; fixed automated spray technology (FAST) range from $22,000 to $4 million; and a large-scale multi-age
The National Cooperative Highway Research Program, under Project 20-7/Task 200, conducted a comprehensive literature review and agency survey on the implementation of advanced winter maintenance…
Content type
Made Public Date
05/20/2008
INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
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