Research

RESEARCH

NCHRP Research Report 969: Traffic Control Strategies for Pedestrians and Bicyclists — Washington, DC

CLIENT: NATIONAL ACADEMY OF SCIENCES

This research project’s goal was to provide guidance for traffic signal design and operations strategies related to non-motorized users’ needs at signalized intersections, which would ultimately increase multimodal connectivity. Leadership was provided for subcontractors from Northeastern University, Wayne State University, and Accessibility Design for the Blind. Outcomes help improve the safety and efficiency of vulnerable users at signalized intersections. The guidebook synthesized bicycle and pedestrian treatments across the nation and provided insights on ways to address user needs for improved safety and mobility. 

OHIO DOT RESEARCH ON-CALL: DIVISION OF OPERATIONS – OHIO

CLIENT: OHIO DEPARTMENT OF TRANSPORTATION (ODOT)

The goal of this research project was to develop a toolbox to provide guidance for traffic signal design and operations strategies related to the needs of non-motorized users at signalized intersections, ultimately increasing multimodal connectivity. Leadership was provided for subcontractors Northeastern University, Wayne State University, and Accessibility Design for the Blind. Outcomes help improve the safety and efficiency of vulnerable users at signalized intersections. The guidebook synthesized the state of practice of bicycle and pedestrian treatments across the nation and provided insights on opportunities to address user needs for improved safety and mobility.

ORIL: Bike Routes on Ohio Local System — Ohio

CLIENT: OHIO DEPARTMENT OF TRANSPORTATION (ODOT)

In collaboration with The Ohio State University, the team conducted a scan of current practices to develop and apply scalable methodologies to identify and assess roadway networks for bicycle facilities within Ohio. The team leveraged existing roadway network data to analyze various methodologies. The desire was to find a preferred methodology that all types of agencies within Ohio may use to discover, characterize, and assess bicycle facilities and relative levels of traffic stress. Once a model is developed, agencies can manipulate mapping data to plan future investments effectively and strategically.

District Mobility — Washington, DC

CLIENT: DISTRICT DEPARTMENT OF TRANSPORTATION (DDOT)

This DC Multimodal Congestion Management Study assessed, quantified, and communicated the state of congestion for multimodal transportation users in the District. Data requirements were researched and refined to allow for annual and scalable analytics to produce multimodal performance measures consistently across the District. The multimodal performance measures identified throughout the study are available at districtmobility.org. They help communicate transportation investments that improve the transportation network.

Dublin Connected Autonomous Vehicles at Signals and Roundabouts — Dublin, OH

CLIENT: CITY OF DUBLIN, OHIO

Performance measures and data needs were developed for CAVs along a corridor of roundabouts and signalized intersections. The team developed and implemented a pilot CV deployment centered around a multi-lane roundabout. The project determined applicable mobility and safety performance measures, collecting data to support testing scenarios. Subsequent phases will test technologies and algorithms at the multi-lane roundabout and adjacent signalized intersections.

Metropolitan Washington Council of Governments Bus Lane Enforcement Study — Washington, DC

CLIENT: METROPOLITAN WASHINGTON COUNCIL OF GOVERNMENTS

A framework was developed for the Washington regional agencies to plan, design, and operate effective bus lanes. The team looked internationally for bus lane implementations, identifying successes and lessons learned. Regional agencies received a guidebook to use in future bus lane implementations. The guidebook included enforcement strategies, design alternatives, educational strategies, and potential legislative actions.

NCHRP Research Report 812: Update of the Signal Timing Manual — Washingtion, DC

CLIENT: NATIONAL ACADEMY OF SCIENCES

The Signal Timing Manual, Second Edition, was developed under NCHRP 03-122 as a national effort to improve practices regarding traffic signal timing. The manual is a handbook for traffic
signal operations and incorporates planning, design, operations, maintenance, and performance measurement. Material was developed and reviewed for isolated and coordinated
signal operations, advanced functions, and multimodal timing.

NCHRP Research Project 954: Performance-Based Management of Traffic Signals — Washington, DC

CLIENT: NATIONAL ACADEMY OF SCIENCES

This research project, partnered with Purdue University, included developing guidelines for agencies to apply a performance-based management approach to improving traffic signal operations. Performance measures of traffic signs were managed. The measures ranged from operations to maintenance with the expectations for leveraging existing technologies and creating opportunities to upgrade to future systems

TCRP REPORT 183: A GUIDEBOOK ON TRANSIT-SUPPORTIVE ROADWAY STRATEGIES

CLIENT: NATIONAL ACADEMY OF SCIENCES

The team assessed transit-preferential treatments at intersections, as well as operational impacts on all users with varying geometric and operational strategies at signalized intersections. The team also identified strategies to improve network efficiencies with transit-preferential treatments and developed guidance for planning and design of treatments.


Some projects featured here were conducted under a previous employer.