This study developed methods for estimating the expected crash frequency of urban freeway segments with HOV or HOT lanes. The safety impacts of the type of separation between the managed lanes and general purpose lanes were examined.
This white paper outlines the potential for the emerging connected transportation system to interface with smart/connected cities. Its aim is to lay the foundation for defining steps that the U.S. Department of Transportation (USDOT) Connected Vehicle Program should take to identify and ex
Crowdsourcing and Its Application to Transportation Data Collection and Management Volume 2414
The participation of a large and varied group of people in the planning process has long been encouraged to increase the effectiveness and acceptability of plans. However, in practice, partici
The term crowdsourcing is applied in common usage to several dissimilar processes. To establish a clear scope for this report, we have organized crowdsourced transportation data applications into four categories:
1. Third party Aggregated Crowdsourced Data 2. Social Media for Pub
AERIS Concept of Operations documents are intended to convey “transformational ideas” that will be modeled to show the potential environmental benefits that can be achieved through connected vehicle applications.
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis Report 271: Traffic Signal Operations Near Highway-Rail Grade Crossings presents a review of the current practices associated with the operation of traffic signals at intersections located near highway-rail grade crossings.&nbs
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 460: Sharing Operations Data Among Agencies document both the qualitative and quantitative business cases for sharing data among transportation-related agencies. The study also documents the institutional, le
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 454: Response to Extreme Weather Impacts on Transportation Systems examines eight recent cases of extreme weather in the United States from the perspectives of transportation operations, maintenance, design, construction, plann
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 451: Emergency Medical Services Response to Motor Vehicle Crashes in Rural Areas identifies potential factors that may help reduce the time needed to provide effective medical care to crash occupants on rural roads.
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 452: State Department of Transportation Fleet Replacement Management Practices explores the current state of the practice regarding fleet replacement management and financing methods by state departments of transportation. The
The Washington State Department of Transportation has released the latest version of its quarterly report that contains updates on a range of agency activities, programs, and capital project delivery.
Performance Measurement Dimension: Challenges and Opportunities from a State DOT Perspective
This document is a flowchart of the chain of command for State Highway Administration for Maryland Department of Transportation. This “Organizational Structure” is current as of January 2013, and details the organizational flow stemming from the State Highway Administrator, through the Department
This document is a flowchart of the chain of command for the Grand Region Operations Section of the Maryland Department of Transportation. It details the organizational flow stemming from the Associate Region Engineer Operations, through the Region Construction Engineer, Staff Engineer, Region Ma
This document is a flowchart of the chain of command for the Metro Region Operations Section of the Maryland Department of Transportation. It details the organizational flow stemming from the Associate Region Engineer Operations, through the Maintenance Superintendent, Traffic Operations Center M
This document is a flowchart of the chain of command for the Operations Field Services Division of the Maryland Department of Transportation. It details the organizational flow stemming from the Operations Field Services Engineer, through Maintenance/Operations Services, Intelligent Transportatio
This document is a flowchart of the chain of command for Traffic Operations C016 of the Nevada Department of Transportation. It details the organizational flow orginating from the Chief Traffic Operations Engineer Administrator, through the Assistant Chief Traffic Ops Engineer Administrator, MSA
I-95 Corridor Coalition Executive Director Search
Austroads has released a report that discusses traffic management practice under the Safe System philosophy and emphasizes the road system as an environment which assists road users to behave effectively and safely. This report is available for no fee after logging onto the site.
NOCoE Newsletter September 2015
This document shares good practices and methods that agencies have found worthwhile in conducting their process reviews. The goal is that this focused information will lead to more consistent and targeted improvements in agency work zone policies and procedures. This document includes tips for su
The recommendations contained in the Traffic Incident Management Gap Analysis Primer allow that they may be tailored towards the needs of the area in which the Traffic Incident Management program will be implemented.
TRB’s second Strategic Highway Research Program (SHRP 2) has released its latest Safety Data Update. The update provides the latest information about implementation of the SHRP 2 safety database, which is the main product of the Safety focus area of the SHRP 2 Program. As of September 30, 2015,
TRB’s second Strategic Highway Research Program (SHRP 2) has released its latest Safety Data Update. #10.
SHRP 2 Safety Data Update Number 10 Frequent visitors to and users of the InSight web portal might have noticed some changes in the last several months with the respect to the disp
TRB’s second Strategic Highway Research Program (SHRP 2) has released its latest Safety Data Update. The update provides the latest information about implementation of the SHRP 2 safety database, which is the main product of the Safety focus area of the SHRP 2 Program.
The second Strate
UDOT Executive Director John Njord assigned a Quality Improvement Team (QIT) to make recommendations that will result in UDOT providing “world class traffic signal maintenance and operations.” The QIT evaluated existing operations, national best practices, and NCHRP recommendations and found tha
A form and instructions used by field personnel to conduct routine maintenance on traffic signals. This practice was developed as a result of a need identified in the QIT process.
A PowerPoint presentation that describes our development of a performance metric to track the intensity of winter storms and the effectiveness of snow removal efforts in real-time.
A PowerPoint presentation that describes our use of a portable RWIS station to monitor rainfall in the watershed above a burn scar in a canyon setting with steep slopes. The system provided warning for every subsequent debris flow event that closed the road.
UDOT's Signal Performance Metrics Dashboard
UDOT's Data Portal, UGATE
UPlan Map Center
UDOT's data portal, UPLAN - fiber optic network map
NACTO/NOCoE Joint Webinar: Traffic Incident Management--Lessons Learned in Seattle
On October 21st, 2:00 p.m.-3:00 p.m., NACTO and NOCoE will hold a joint webinar on lessons learned regarding the City of Seattle's res
Youtube video showcasing UDOT Green Light Project.
Youtube video showcasing UDOT's 5400 Flex Lane Project.
Youtube video showcasing UDOT Express Lane project.
Youtube video showcasing UDOT's CFI project.
The Virginia Department of Transportation Safety Service Patrol (SSP) program began in the late 1960s, initially with district maintenance personnel providing assistance to disabled motorists in Northern Virginia during rush hours.
Over the last 50 years, the Safety Service Patrol (SSP)
Virginia DOT: Operations Division Instructional and Informational Memoranda
Michigan's Traffic Incident Management Effort (Mi-TIME) is a partnership between agencies, including MDOT, state and local law enforcement, fire, EMS, and towing services, to work together to safely and efficiently clear traffic incidents from Michigan's highways.
The measures in this report support and are organized around the four major goal areas of the State Long-Range Transportation Plan - Stewardship, Safety and Security, System Improvement and Efficient and Effective Operations. This initial report moves beyond the MDOT pavement and bridge condition
The System Condition Report provides a wealth of information for transportation and/or data enthusiasts and others with the dedication to "click" through its many data-rich charts and tables. However, it may not be a readily accessible format for the more casual reader interested in a "bigger pic
North Carolina DOT Traffic Signal Design Manual
National TIM Responder Training Program Quarterly Update October 8, 2015
Bridge Construction Records and Procedures Manual, Volume I (9/2014) Bridge Construction Records and Procedures Manual, Volume II (9/2014Local Assistance Bridge Deck Construction Manual Construction Manual Construction Quality Assurance Program Manual Construction Site Best Management Practi
Highway Design Manual Plans Preparation Manual Project Development Procedures Manual (PDPM) Project Development Workflow Tasks (PDWT) Standard Plans and Specifications
Element Inspection Plans Preparation Manual Service Directory Structural Detailing Standards
Bridge Design Aids Bridge Design Details Bridge Design Practice Bridge Design Specifications Bridge Memo To Designers Bridge Standard Detail Sheets (XS Sheets) Reference Sheets Seismic Design Criteria Structural Detailing Standards Service Directory Element Inspection Bridge Strudl Man
