Search results for [Traffic management] at NC Cardinal

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Practices to manage traffic sign retroreflectivity / by Re, Jonathan M.(CARDINAL)310376; Carlson, Paul J.(Paul John),1969-(CARDINAL)310375; United States.Federal Highway Administration.(CARDINAL)139839; American Association of State Highway and Transportation Officials.(CARDINAL)138446; National Cooperative Highway Research Program.(CARDINAL)281856; National Research Council (U.S.).Transportation Research Board.(CARDINAL)141287;

Includes bibliographical references (page 31).Introduction -- Description of sign retroreflectivity maintenance methods -- Range of practices -- Case studies -- Effective practices -- Research in progress and research needs -- Conclusions.The objective of this synthesis study was to provide examples of effective and advantageous practices that illustrate how different types of agencies can meet the retroreflectivity requirements. The aim of this study was to document the state of the practice and identify content that will assist other agencies that are exploring different methods for maintaining sign retroreflectivity. Information for this synthesis study was gathered from three distinct sources: published research, existing guidance and policy, and telephone surveys. The telephone surveys comprised the majority of the information in this report. The goal of the surveys was to identify what methods have been implemented and which have shown the most promise. The survey included 14 main questions and was designed to facilitate an open-ended conversation about sign retroreflectivity and general maintenance practices. Survey participants were public agencies with active programs for maintaining sign retroreflectivity. They were located and contacted through professional society e-mail lists, meeting announcements, professional contacts, agency websites, past presentation materials, and referrals; in some cases, it was the participants who expressed an interest and in other cases their participation was requested. Overall, 48 agencies participated, 40 that operate roadways open to the public that selected a method found in the MUTCD. The questions were e-mailed to the participants prior to scheduling a time for the interview, so that individuals had time to prepare their responses. During the telephone survey, the questions served as a guide for a general discussion about traffic sign issues and practices between the surveyor and the participant. Table 1 shows the distribution of the 40 agencies that have selected a method for replacing and maintaining a sign population. Within participant responses, it was determined that the expected sign life method was the most selected primary and secondary method for replacing and managing signs; the second most common was visual nighttime inspection; however, agencies were somewhat conflicted about this method. Survey participants were typically divided into two groups: agencies that have used nighttime inspection and agencies that rejected it. The primary reason for ending nighttime inspection was that agencies were concerned about staffing and did not want to add another activity to an already demanding maintenance schedule. The blanket replacement method was the third most selected method and agencies employing this approached generally praised it for its ease and straightforward application. Finally, a few agencies were implementing the measured retroreflectivity or control signs.Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration

Subjects: Technical reports.; Reflectors (Safety devices); Signs and signboards.; Traffic signs and signals;

Available copies: 1 / Total copies: 1

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Evaluation of the use of live aerial video for traffic management / by Demetsky, Michael J.(CARDINAL)313581; Virginia Transportation Research Council.(CARDINAL)195142;

Final report;This report describes the evaluation of an intelligent transportation system (ITS) demonstration project in which live aerial video of traffic conditions was captured by a rotary wing aircraft operated by the Fairfax County (Virginia) Police Department. The video was transmitted to ground stations for use by Fairfax County and the Virginia Department of Transportation for incident and congestion management. The evaluation had three foci: (1) the capture and transmission of the video picture, (2) related institutional issues, and (3) the utility of the video information in incident management and traffic control. The evaluation covered a 10-month demonstration period from July 1993 to April 1994. The demonstration showed that aerial video can capture and transmit pictures of traffic flow and incidents to aid in decision making by traffic management. Throughout the evaluation period, the reliability of the system was greatly improved, resulting in a continuous daily operation (except for emergency interruptions). The aerial video has enhanced incident management in the application area and has potentially unlimited on-line applications for traffic surveillance in conjunction with various traffic management systems. Examples of off-line applications are training, planning, operational improvements, and before and after studies.

Subjects: Technical reports.; Aerial photography in traffic engineering.; Electronics in transportation.; Traffic congestion; Traffic flow; Video recording;

Available copies: 1 / Total copies: 1

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Chapter III : Transportation Review Team report / by Citizens Efficiency Review Committee.;

Subjects: Transportation; Traffic management; Parking;

Available copies: 0 / Total copies: 1

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Policy for installation and maintenance of traffic control devices on the State Highway system. by North Carolina State Highway Commission,issuing body.(CARDINAL)166723;

Subjects: Traffic signs and signals; Traffic signs and signals;

Available copies: 1 / Total copies: 1

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Development of a general evaluation plan for CARAT : Congestion Avoidance and Reduction for Autos and Trucks : interim report / by Hughes, Ron,author.(CARDINAL)858575; North Carolina.Department of Transportation,report addressee.(CARDINAL)145570; United States.Federal Highway Administration,sponsor.(CARDINAL)139839; University of North Carolina at Chapel Hill.Highway Safety Research Center,issuing body.;

Includes bibliographical references (leaves 54-55).Sponsored by the Department of Transportation, Federal Highway Administration

Subjects: CARAT (Program : Charlotte, N.C.); Traffic flow; Traffic congestion; Intelligent transportation systems;

Available copies: 1 / Total copies: 1

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Implementation guide for CARAT (congestion avoidance and reduction for autos and trucks) / by Hughes, Ronald G.,1945-(CARDINAL)312501; Turner, N. Kipp.Evaluation of selected incident management techniques proposed in the North Carolina Department of Transportation CARAT report.; University of North Carolina (System).Highway Safety Research Center.(CARDINAL)161140; North Carolina.Department of Transportation.(CARDINAL)145570; United States.Federal Highway Administration.(CARDINAL)139839;

Includes bibliographical references.Final report.Sponsored by Federal Highway Administration.

Subjects: Technical reports.; CARAT (Program : Charlotte, N.C.); Traffic flow; Traffic congestion; Intelligent transportation systems;

Available copies: 6 / Total copies: 7

On-line resources: Suggest title for digitization;

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Freeway incident management handbook / by Reiss, R. A.(CARDINAL)311415; Dunn, Walter M.(CARDINAL)311414; United States.Federal Highway Administration.(CARDINAL)139839; Dunn Engineering Associates.(CARDINAL)311413;

Includes bibliographical references (pages 127-128)Final report.Performed by Dunn Engineering Associates, under contract no.

Subjects: Technical reports.; Traffic congestion; Express highways;

Available copies: 1 / Total copies: 1

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North Carolina strategic highway safety plan / by North Carolina.Department of Transportation,issuing body.(CARDINAL)145570; North Carolina Executive Committee for Highway Safety,issuing body; United States.Federal Highway Administration,issuing body.(CARDINAL)139839;

Description based on: 2007; title from cover.

Subjects: Traffic safety; Traffic safety; Transportation; Traffic engineering;

Available copies: 0 / Total copies: 2

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Designing an efficient nighttime sign inspection procedure to ensure motorist safety / by Rasdorf, W. J.(William J.)(CARDINAL)283954; North Carolina.Department of Transportation.Research and Analysis Group.(CARDINAL)272064; North Carolina State University.Department of Civil, Construction, and Environmental Engineering.(CARDINAL)307977;

Includes bibliographical references (pages 231-233).Final report;Performed by North Carolina State University, Department of Civil, Construction and Environmental Engineering, sponsored by North Carolina Department of Transportation, Research and Analysis Group under project no.

Subjects: Traffic signs and signals; Traffic signs and signals;

Available copies: 4 / Total copies: 7

On-line resources: https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740; https://digital.ncdcr.gov/documents/detail/3689740;

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Evaluation of roadway sites for queue management / by Miller, Holly J.; Demetsky, Michael J.(CARDINAL)313581; Virginia Transportation Research Council.(CARDINAL)195142;

Includes bibliographical references (pages 33-46).Final report.This study addresses the problem of queuing on highway facilities, wherein a large number of computerized methods for the analysis of different queuing situations are available. A three-tier classification system of the methodologies was used with the following categories: dedicated techniques, classical queuing theory, and simulation. A knowledge base for selecting an appropriate technique for a specific facility and problem is provided. The utilization of the video camera to capture queuing data in the field is described and applied to evaluate alternative methods to analyze queuing at signalized intersections. This evaluation revealed three distinct approaches from the respective categories for the evaluation of queuing at signalized intersections: the 1985 HeM method, the vacation-server queuing model, and TRAF-NETSIM. It was found that the queuing model and simulation methods offer flexibility over the more structured, dedicated 1985 HeM method and should be considered in the analysis of other situations as well as of signalized intersections.Sponsored by the Virginia Department of Transportation, in cooperation with the U.S. Department of Transportation, Federal Highway Administration, under contract no.

Subjects: Technical reports.; Express highways; Queuing theory.; Traffic congestion; Traffic flow;

Available copies: 1 / Total copies: 1

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