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• 1. [Article] GIS-T Data Sharing Issues

  The purpose of this paper is to develop a framework and principles for sharing of transportation data. The framework is intended to clarify roles of the various participants and the principles are intended ...

  Citation × Citation Citation Abstract Copy Title: GIS-T Data Sharing Issues Author: Dueker, Kenneth, Butler, J. Allison Year: 1999 The purpose of this paper is to develop a framework and principles for sharing of transportation data. The framework is intended to clarify roles of the various participants and the principles are intended to provide guidance for the participants. Both the framework and the principles are based on a GIS-T data model that defines relations among transportation data elements. (See Dueker and Butler (1998) for a detailed description of the data model. A simplified version is provided in the next section.) The data model guards against ambiguities and provides a basis for the development of the framework and principles for sharing of transportation data. Title: GIS-T Data Sharing Issues Author: Dueker, Kenneth, Butler, J. Allison Year: 1999 The purpose of this paper is to develop a framework and principles for sharing of transportation data. The framework is intended to clarify roles of the various participants and the principles are intended to provide guidance for the participants. Both the framework and the principles are based on a GIS-T data model that defines relations among transportation data elements. (See Dueker and Butler (1998) for a detailed description of the data model. A simplified version is provided in the next section.) The data model guards against ambiguities and provides a basis for the development of the framework and principles for sharing of transportation data. Close

• 2. [Article] Automated Bus Dispatching, Operations, Control, and Service Reliability: Baseline Analysis

  The authors of this report are engaged in a long term project to assess the impacts of Tri-Met's BDS on service reliability and transit use. The framework designed for this assessment focuses on documenting ...

  Citation × Citation Citation Abstract Copy Title: Automated Bus Dispatching, Operations, Control, and Service Reliability: Baseline Analysis Author: Strathman, James G., Dueker, Kenneth, Kimpel, Thomas J., Gerhart, Rick, Turner, Ken, Taylor, Pete, Callas, Steve, Griffin, David, Hopper, Janet Year: 1998 The authors of this report are engaged in a long term project to assess the impacts of Tri-Met's BDS on service reliability and transit use. The framework designed for this assessment focuses on documenting service reliability and passenger activity at three major junctures: • The pre-operational (baseline) period; • The initial (passive) period following implementation of the new system, when both drivers and dispatchers have access to schedule adherence information in real time, but before the development and use of operations control practices that exploit the information generated by the system; • Full implementation, when operations control practices are defined and actively employed by dispatchers and field supervisors, and when performance data is used in wriling schedules. The baseline analysis documents service reliability on eight routes that were selected to be representative of the typology of routes in Tri-Met's system. Data on weekday run times, headways, and on-time performance were recovered over a two week period in November 1996. Findings from analysis of these data are presented in this report. Title: Automated Bus Dispatching, Operations, Control, and Service Reliability: Baseline Analysis Author: Strathman, James G., Dueker, Kenneth, Kimpel, Thomas J., Gerhart, Rick, Turner, Ken, Taylor, Pete, Callas, Steve, Griffin, David, Hopper, Janet Year: 1998 The authors of this report are engaged in a long term project to assess the impacts of Tri-Met's BDS on service reliability and transit use. The framework designed for this assessment focuses on documenting service reliability and passenger activity at three major junctures: • The pre-operational (baseline) period; • The initial (passive) period following implementation of the new system, when both drivers and dispatchers have access to schedule adherence information in real time, but before the development and use of operations control practices that exploit the information generated by the system; • Full implementation, when operations control practices are defined and actively employed by dispatchers and field supervisors, and when performance data is used in wriling schedules. The baseline analysis documents service reliability on eight routes that were selected to be representative of the typology of routes in Tri-Met's system. Data on weekday run times, headways, and on-time performance were recovered over a two week period in November 1996. Findings from analysis of these data are presented in this report. Close