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Incorporate Probe Data to Expand the Range of Smart Work Zones and Provide Measurements from Locations Beyond the Range of the Sensors.

Expand the range of work zones by using probe data to fill in detection gaps. Incorporating probe data with sensor data can provide more accurate queue warnings, reduce work zone safety costs, and…
Content type
Date Posted
12/27/2021

When Determining Frequency for Reporting Bicycle and Pedestrian Count Data, Agencies Should First Identify The Objectives Associated with each Necessary Data Report.

Deploy pneumatic tubes for bicycle counting applications for high system accuracy and low equipment and installation costs. They have a very high BCR, however the quality of pneumatic tubes is low.…
Content type
Date Posted
12/22/2021

Intersection Conflict Warning Systems Should Avoid Using Messages Such as “Traffic Approaching When Flashing” Since the Signs May Not Always Flash.

Based on the installation details of ICWS provided by Minnesota, Missouri, and North Carolina, the following lessons are summarized: Expect operational challenges. Especially for prototype systems,…
Content type
Date Posted
11/24/2021

Effectively communicate plans for implementing contraflow lanes during a hurricane evacuation.

The Estimated Long-Term Benefits of Deploying an Integrated Corridor Management, Wrong‐Way Driver Detection and Dynamic Curve Warning Systems, and Adding Fiber-Optic Trunkline in North Carolina Showed a Benefit-Cost Ratio of 2.95.

METHODOLOGY The benefits of the project were calculated for an analysis period of 2024-2043 estimated according to guidance given by U.S. Department of Transportation (USDOT) for a benefit-cost…
Content type
Date Posted
05/30/2023

Intersection Conflict Warning Systems Installed at 93 Unsignalized Rural Intersections in Multiple States Had Estimated Benefit-to-Cost Ratios Ranging from 16 to 39.

METHODOLOGY In order to account for potential selection bias and regression-to-the-mean, an empirical Bayes before–after analysis was conducted, using reference groups of similar four-legged, rural…
Content type
Date Posted
11/24/2021

Coordinating human service transportation across funding sources can increase passengers per revenue hour by 10 percent.

MethodologyThis study sought to quantify the potential benefits of coordinating HST in rural areas because there was a lack of literature with quantified benefits of service coordination. The goal…
Content type
Date Posted
02/20/2014

The Cost of Completing the Fiber-Optic Trunkline and Deploying a Suite of ITS Improvements, Including Integrated Corridor Management, Wrong-Way Driver Detection, and Dynamic Curve Warning Systems in North Carolina was Estimated to be $25.7 Million.

The North Carolina Department of Transportation (NCDOT) I-85/I-40/NC540 Foundations for Automated and Safer Transportation Project is set to add a fiber-optic trunk line connection between the state'…
Content type
Made Public Date
05/30/2023