Development of Guidelines for the Installation of Marked Crosswalks

Development of Guidelines for the Installation of Marked Crosswalks

Author: Lance E. Dougald

Publisher:

Published: 2004

Total Pages: 44

ISBN-13:

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The Manual on Uniform Traffic Control Devices (MUTCD) provides little guidance on the installation of marked crosswalks, especially at locations other than intersections, i.e., mid-block locations. Crosswalks have typically been installed and designed on the basis of engineering judgment. The MUTCD is a good resource for information on the design aspects of crosswalk pavement markings, pedestrian signals, and signage. However, the MUTCD does not provide explicit guidance for determining where and when to install a marked crosswalk if a need exists. The purpose of this research was to develop guidelines for the installation of marked crosswalks that the Virginia Department of Transportation (VDOT) could use statewide. The scope of the research was limited to a review of the literature on marking crosswalks. The author postulated that the information found in the literature could be used to develop guidelines acceptable to VDOT, thus saving an extensive and costly field-based research effort. A task group consisting of VDOT planners and traffic engineers from VDOT's central office and district offices was established to provide oversight, guidance, and, as appropriate, approval of the developed draft guidelines. Based on the findings and conclusions of the literature review, draft guidelines were compiled and synthesized and then presented to the task group for review and discussion. Revised guidelines were then developed and recommended for pilot implementation The guidelines developed address where and under what conditions marked crosswalks are to be installed at controlled locations, uncontrolled locations, and unconventional intersections and locations. Controlled locations include locations where the approaches to an intersection are controlled by signals, stop signs, or yield signs. Uncontrolled locations include approaches to an intersection and mid-block locations where traffic control devices are absent. Unconventional intersections and locations include T, skewed, and offset intersections; hills; and curves.


Safety and Guidelines for Marked and Unmarked Pedestrian Crosswalks at Unsignalized Intersections in Nevada

Safety and Guidelines for Marked and Unmarked Pedestrian Crosswalks at Unsignalized Intersections in Nevada

Author: Yue Zhao

Publisher:

Published: 2012

Total Pages: 119

ISBN-13:

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This report examines two aspects of marked and unmarked crosswalks at unsignalized intersections. Firstly, the report assesses the safety performance of marked/unmarked crosswalks in Nevada through comparing pedestrian-related crash rates. In which, a linear regression model is established to estimate pedestrian daily volume. Consistent with previous research, it is found that marked crosswalks do involve higher pedestrian-related crash rates in Nevada. In addition, the report proposes a set of guidelines for marking crosswalks at unsignalized intersections through a comprehensive process. It summarizes existing guidelines including the MUTCD guideline, FHWA guideline and etc. in the literature review. The report further points out that one of the major issues lies in the lack of comprehensive consideration and interpretation of potential factors. Considering safety and mobility effects, it suggests the contribution of each factor to the decision making not only depends on its own value but also the association with other factors. Hence, the report summarizes key impact factors and applies revised multi-criteria analysis methods to develop a Mark/Unmark Choice Tool embedded in the guideline. At last, the proposed guideline is applied in a case study involving field data in Nevada to demonstrate its practicability and feasibility.


Pedestrian Facilities Users Guide: Providing Safety and Mobility

Pedestrian Facilities Users Guide: Providing Safety and Mobility

Author: Charles V. Zegeer

Publisher: DIANE Publishing

Published: 2002

Total Pages: 164

ISBN-13: 1428995501

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This guide is intended to provide information on how to identify safety and mobility needs for pedestrians with the roadway right-of-way. Useful for engineers, planners, safety professionals and decision-makers, the guide covers such topics as: the Walking Environment including sidewalks, curb ramps, crosswalks, roadway lighting and pedestrian over and under passes; Roadway Design including bicycle lanes, roadway narrowing, reducing the number of lanes, one-way/two-way streets, right-turn slip lanes and raised medians; Intersections with roundabouts, T-intersections and median barriers; and Traffic calming designs.


Investigation of Exposure Based Pedestrian Accident Areas

Investigation of Exposure Based Pedestrian Accident Areas

Author:

Publisher:

Published: 1988

Total Pages: 156

ISBN-13:

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Previous FHWA research on pedestrian exposure identified four problem areas as promising candidates for accident reduction: intersections without marked pedestrian crosswalks, major arterial streets, local streets, and locations lacking sidewalks or pedestrian pathways. This report describes the results of a project undertaken to examine those four problem areas. The objectives of the project were to: evaluate past research on pedestrian crosswalk markings and develop guidance for when and what type of crosswalk markings should be provided; investigate traffic engineering improvements for major arterial streets to increase pedestrian safety; investigate traffic engineering improvements for local streets to increase pedestrian safety; and examine existing guidance/warrants for the provision of pedestrian pathways and sidewalks and prepare revised guidance/warrants.


Development of Guidelines for In-roadway Warning Lights

Development of Guidelines for In-roadway Warning Lights

Author: E. D. Arnold

Publisher:

Published: 2004

Total Pages: 44

ISBN-13:

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The purpose of this research was to develop guidelines for IRWLs that the Virginia Department of Transportation (VDOT) could use statewide to ensure uniformity. The guidelines include both "planning" and "design" guidelines. Planning guidelines focus on when and where IRWLs are needed or justified. Design guidelines focus on design features of IRWLs and their components. The scope of the research was limited to a review of existing guidelines and of experiences with existing IRWLs.


Selection of Pedestrian Crossing Treatments at Controlled and Uncontrolled

Selection of Pedestrian Crossing Treatments at Controlled and Uncontrolled

Author: Suleiman Ashur

Publisher:

Published: 2015-09-01

Total Pages:

ISBN-13: 9781622603428

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Designers and traffic engineers have to make decisions on selecting a pedestrian treatment whenever designing a new pedestrian facility or retrofitting an existing one. The goal is either to provide or improve pedestrian safety at pedestrian crossing facilities, including controlled locations of signalized intersections and approaches with stop and yield signs, and uncontrolled locations of intersections and midblock sites. Currently, the Indiana Department of Transportation (INDOT) has limited resources on pedestrian treatment selection that does not take into consideration key elements such as number of lanes and the existence of a raised median. Therefore, there is a need to find a more detailed and comprehensive approach to providing guidelines when deciding on a pedestrian crossing treatment. The approach has to be practical and can be easily utilized by traffic and design engineers, planners, and other constituents.Most of the State DOTs developed their guidelines on pedestrian crossing treatment based on several resources. However, the 2002 FHWA-RD-01-075 study titled "Safety Effects of Marked Vs. Unmarked Crosswalks at Uncontrolled Locations" was adopted by several states either "as is," with some modifications, or referenced as a source on pedestrian crosswalk selection. State DOTs mainly use standards and guidelines from the National MUTCD, Part 3 and NCHRP Report 672 for roundabout crosswalk markings. In general, there are no clear warrants for grade separation treatment. In addition, there is a need for a national and comprehensive study to develop practical guidelines on pedestrian crossing treatments, especially on multilane roadways, complex intersections, and when the speed is 45 mph or more.This study proposed guidelines on crosswalk markings and treatment selection of pedestrian crossings based on a synthesis of federal and state reports, guidelines, design manuals, polices, and other relevant publications. It is recommended to adopt these guidelines as a reference for pedestrian treatment selection at INDOT.


Human Factors Guidelines for Road Systems

Human Factors Guidelines for Road Systems

Author: John L. Campbell

Publisher: Transportation Research Board

Published: 2012

Total Pages: 319

ISBN-13: 0309258162

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"This report completes and updates the first edition of NCHRP Report 600: Human Factors Guidelines for Road Systems (HFG), which was published previously in three collections. The HFG contains guidelines that provide human factors principles and findings for consideration by, and is a resource document for, highway designers, traffic engineers, and other safety practitioners."--Foreword.


Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations

Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations

Author: Charles V. Zegeer

Publisher:

Published: 2005

Total Pages: 118

ISBN-13:

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Pedestrians are legitimate users of the transportation system, and they should, therefore, be able to use this system safely. Pedestrian needs in crossing streets should be identified, and appropriate solutions should be selected to improve pedestrian safety and access. Deciding where to mark crosswalks is only one consideration in meeting that objective. The purpose of this study was to determine whether marked crosswalks at uncontrolled locations are safer than unmarked crosswalks under various traffic and roadway conditions. Another objective was to provide recommendations on how to provide safer crossings for pedestrians. This study involved an analysis of 5 years of pedestrian crashes at 1,000 marked crosswalks and 1,000 matched unmarked comparison sites. All sites in this study had no traffic signal or stop sign on the approaches. Detailed data were collected on traffic volume, pedestrian exposure, number of lanes, median type, speed limit, and other site variables. Poisson and negative binomial regressive models were used.