This report reviews domestic and international literature describing current research and state of the practice in using travel time reliability in transportation planning; summarizes case studies from agencies working to incorporate reliability into their transportation planning processes. Furth
This guidebook provides step-by-step procedures for designing and conducting empirically based (i.e., observational) before-and-after studies for operations strategies. While the focus is on operational strategies, the same procedures may be applied to any highway congestion mitigation strategies
Transportation systems management and operations (TSM&O) strategies can improve travel time reliability, which yields both safety and economic benefits and improves road-user experience. To date, only a few transportation agencies have TSM&O programs to address travel time reliability, bu
Adding transportation capacity improves safety, accessibility, and the economic health of a region but often comes with an economic, social, or environmental price. The public is aware of the price and must be convinced that new capacity is really needed before they will suppor
The research project that produced this report focused on answering the following related questions:
How should highway reconstruction projects be set in space and time to minimize disruption to the traveling public, businesses, and adjacent communities? What is the traffic impact onThis guide, which focuses on showing how to use BPMN for mapping traffic operations business processes, is intended to help transportation agencies move forward in addressing nonrecurring traffic congestion and delivering more reliable travel times on their highway networks. The guide explores va
Infrastructure needs within the United States have changed from building new facilities to replacing, expanding, or renewing existing facilities. The project management issues involved with infrastructure renewal are different from the issues for new construction. Correspondingly, new project man
The goal of this research was to improve urban-scale modeling and network procedures to address operations or spot improvement that affects travel-time choice, route choice, mode choice, reliability, or emissions. Such improvements may include traveler information, expanded transit service, prici
Freight traffic has generally been growing at a rate faster than passenger traffic on the nation’s highway network. As a result, freight bottlenecks have begun to develop at various points throughout the network. These have historically been near ports and other intermodal facilities. However, fu
Improving Traffic Incident Scene Management, was designed to establish the foundation for and promote certification of responders to achieve the three objectives of the traffic incident management (TIM) national unified goal (NUG). The intent is to motivate responders from different stakeholder g
