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The annual number of near-crash events at test sites equipped with intersection collision warning systems in Minnesota decreased by approximately 26 percent.

Findings The number of near-crashes was observed to decrease significantly at the treatment sites both 1 month (-8) and 12 months (-9) after ICWS installation. Conversely, the number of near-crashes…
Content type
Date Posted
11/21/2017

Cooperative Intersection Collision Avoidance Systems improve safety and offer an alternative to traffic signals at rural intersections

SummaryThe Cooperative Intersection Collision Avoidance Systems (CICAS) initiative determines the optimal combination of infrastructure and in-vehicle systems needed to address a full range of…
Content type
Date Posted
12/08/2015

Benefit-Cost Ratios of up to 25.8:1 have been produced in regions with aggressive Freeway Service Patrol programs.

FINDINGSVery few of the programs surveyed reported conducting an official benefit-cost ratio analysis. Currently, no national standard exists for measuring the benefit-cost ratio of service patrol…
Content type
Date Posted
03/26/2014
Taxonomy (ARC-IT) Roadway Service Patrols (PS08)

A Benefit-Cost analysis shows Vision-based Lane Departure Warning Systems have a B/C ratio between 5.35 and 19.16 over a 20 year analysis period, with efficiency ranging from 23 to 50 percent.

Findings In order to curb roadway departures on tangential sections of roadways, two technology-based solutions were evaluated: Vision-based Lane Departure Warning Systems (LDWS) and Differential GPS…
Content type
Date Posted
10/02/2012

A Benefit Cost analysis shows that dynamic curve speed warning signs have 30 percent effectiveness and an incremental B/C ratio between 2.79 to 5.57 for curves that already have static curve warnings.

FindingsMinnesota DOT (Mn/DOT) already had some form of static warning sign for 80 percent of curves on their trunk highways, so they investigated the incremental benefit of adding Dynamic Curve…
Content type
Date Posted
10/02/2012

Maintenance Decision Support System (MDSS) use shows benefit-cost ratios ranging from 1.33 to 8.67.

MethodologyThree states, New Hampshire, Minnesota, and Colorado, were chosen to provide case studies on the benefit-cost ratio of using MDSS. The three states were selected because they:…
Content type
Date Posted
05/06/2011

Intersection collision avoidance systems deployed at intersections with high crash frequencies or high rates of severe injury are projected to recoup initial costs within one year, through a reduction in crashes.

Costs to deploy Intersection Collision Warning Systems range from $9,000 to $142,500 depending on number of lanes and if systems are post or overhead mounted.

FHWA organized a pooled fund study of 40 States to evaluate low-cost safety strategies as part of its strategic highway safety effort. One of the strategies selected for evaluation in three states…
Content type
Made Public Date
02/06/2018

Cooperative Intersection Collision Avoidance System program costs $5,222,635 over six years in Minnesota

Summary There are a number of ITS initiatives in Minnesota in both operation and in development. This document presents an annual report of the Mn/DOT OTST ITS Section’s funded activities for fiscal…
Content type
Made Public Date
12/17/2015

Cost of Driver Assistance packages that include Vision-Based Lane Departure Warning Systems range from $295 to $2800.

Cost information from four major US auto brands that provide vision-based Lane Departure Warning Systems (LDWS) provides a wide range of prices for this application, however, these are due to the…
Content type
Made Public Date
10/02/2012

Cost of DGPS Lane Departure Warning Systems estimated between $500 and $1,000 after 20 years on the market.

The technology for a DGPS-based Lane Departure Warning System (LDWS) has not been deployed for automobiles on the market. The following is an estimate from Minnesota DOT (Mn/DOT) for the potential…
Content type
Made Public Date
10/02/2012

Statewide implementation of Maintenance Decision Support System estimated at $496,952.

The costs associated with MDSS use are presented in the table below (in 2008 dollars):   Component Costs ($/year) Assumptions Software and…
Content type
Made Public Date
05/12/2011

Perform outreach to snowplow drivers to address privacy and distraction concerns prior to successful deployment of snowplow dash cam integration into 511.

The snowplow camera images provided significant benefit to MnDOT staff and the traveling public, and the efforts and expense spent in technical implementation were justified by the project outcomes.…
Content type
Date Posted
01/08/2018

Beware that modeling may not be a suitable substitute for before-after studies of ITS integration projects.

The Minnesota Traveler Information Guidance and Emergency Routing (TIGER) project sought to improve mobility and safety along the Interstate-94 (I-94)/Highway 10 corridor by deploying ITS…
Content type
Date Posted
03/31/2011