Displaying 11 - 20 of 8406

Montana Road Weather Information System Software Enhancements Cost Up to $173,800 Annually, Depending on Forecasting Functionalities and System Expansion.

Road Weather Information Systems (RWIS) have been developed by transportation agencies to address operational and safety challenges associated with weather. Researchers conducted a comprehensive…
08/30/2021
Taxonomy: Surveillance, Monitoring, & Prediction

Analysis of Road Weather Information System Enhancements and Expansion in Montana Estimated to Save up to $2.2 Million in Crash Occurrence and Delay Costs.

Methodology After performing a needs assessment and weather data and software analysis, researchers conducted a benefit-cost analysis to investigate outcomes related to using different software…
08/30/2021
Taxonomy: Surveillance, Monitoring, & Prediction

The Cost To Implement Video Data Storage and Networking Services To Support 68 Traffic Cameras in New York City Was Estimated at $1,663 per Year Annualized Over Three Years.

This study’s primary objective was to introduce a continuous, remote, and real-time pedestrian detection and social-distancing data acquisition system on an existing video surveillance system in New…
08/27/2021
Taxonomy: Infrastructure, Data Archive

Study Finds Red-Light Cameras to Be Effective at Reducing About 30 Percent of Rear-End and Right-Angle Crashes with a Benefit-to-Cost Ratio of 2.61.

FINDINGS Both rear-end and right-angle crashes were reduced about 30 percent at adjacent and randomly selected intersections. Using the naïve approach, total rear-end crashes were reduced by 30.6…
08/26/2021
Taxonomy: Traffic Control Violation Warning

Michigan’s ITS Microwave Vehicle Detection System Had Construction Costs of $45,845 per Device Alongside Average Operation and Maintenance Cost of $1,908 per Device per Year.

This project evaluated the accuracy of traffic volume data collected by Intelligent Transportation Systems-Microwave Vehicle Detection System (ITS-MVDS) sites geographically distributed throughout…
08/26/2021
Taxonomy: Traffic, Traffic

Using ITS Microwave Vehicle Detection Sensors Instead of Operating 14 Continuous Count Station Sites Was Estimated to Save Michigan DOT $48,959 Per Year.

METHODOLOGY Firstly, existing CCS sites were evaluated via redundancy and sufficiency analysis. Then both CCS sites and ITS-MVDS sites were analyzed to identify ITS sensors that could replace…
08/26/2021
Taxonomy: Traffic, Traffic

The Cost To Deploy and Maintain a Work Zone Intrusion Alert System Can Range From $6,600 to $31,028 per Year.

This study sought to evaluate three existing Work Zone Intrusion Alert (WZIA) technologies: Intellicone; Advanced Warning and Risk Evasion (AWARE); and the Worker Alert System (WAS). Intellicone is…
08/25/2021
Taxonomy: Intrusion Detection

Tennessee Study Found Work Zone Intrusion Alert (WZIA) Technologies Using Cone Mountable Sensor Lamps Were Most Applicable for Long-Term Stationary Work Zones.

The report presents the following recommendations on suitable use cases for three selected WZIA technologies based on multicriteria analysis consisting of capital cost, performance accuracy, safety…
08/25/2021
Taxonomy: Intrusion Detection

Dynamic Message Signs Tested in Maryland Suggest the Use of Color-Coded Signs and Route Avoidance Advice Can Help Route Choice Decisions and Compliance.

The following lessons learned were summarized based on the driver simulator study and DMS best practices from the literature review. Design DMSs to be color-coded (especially color-blind…
08/25/2021
Taxonomy: Dynamic Message Signs

Increase Comprehension of Blue Light Bicycle Detection Systems By Installing Supplemental Signage on the Far-side of the Intersection, as Opposed to the Near-Side.

The survey results and field tests of the blue light detection system and countdown timer suggest the following recommendations for practice: Implement supplemental signage for comprehension in…
08/25/2021
Taxonomy: Bicycle Warning