FINDINGS
In general, the WRF model was improved by the additional CV-derived data.
The paper noted that in most instances, the bias-corrected root mean squared error (BCRMSE), a measure that…
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…
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…
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…
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…
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…
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:…
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…
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…
The Minnesota DOT (Mn/DOT) installed an active deer warning system on a one-mile section of rural roadway. The system was found to be effective; however, shortly after the system was installed,…
A dynamic curve speed warning sign using radar detection is estimated to cost between $9,000 and $14,000, with the price dependent on the type of warning systems used. The sign would be solar powered…
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…
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…
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.…
Methodology
The in-vehicle safety alerts used two different kinds of alerts: visual and audible. Visual alerts showed the same traffic control device on the smartphone as appeared on the roadside (e.…
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…