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• 11. [Article] Beyond the Field of Dreams: Light Rail and Growth Management in Portland

  Citation × Citation Citation Abstract Copy Title: Beyond the Field of Dreams: Light Rail and Growth Management in Portland Author: Arrington, G. B., Jr., Tri-County Metropolitan Transportation District of Oregon Year: 1996 Title: Beyond the Field of Dreams: Light Rail and Growth Management in Portland Author: Arrington, G. B., Jr., Tri-County Metropolitan Transportation District of Oregon Year: 1996 Close

• 12. [Article] Community Building Sourcebook: Land Use and Transportation Initiatives in Portland, Oregon

  Citation × Citation Citation Abstract Copy Title: Community Building Sourcebook: Land Use and Transportation Initiatives in Portland, Oregon Author: Tri-County Metropolitan Transportation District of Oregon Year: 1999 Title: Community Building Sourcebook: Land Use and Transportation Initiatives in Portland, Oregon Author: Tri-County Metropolitan Transportation District of Oregon Year: 1999 Close

• 13. [Article] Under Construction: Building a Livable Future

  Citation × Citation Citation Abstract Copy Title: Under Construction: Building a Livable Future Author: Tri-County Metropolitan Transportation District of Oregon Year: 1996 Title: Under Construction: Building a Livable Future Author: Tri-County Metropolitan Transportation District of Oregon Year: 1996 Close

• 14. [Article] Banfield Light Rail Project: Conceptual Design Information for the City of Portland

  Citation × Citation Citation Abstract Copy Title: Banfield Light Rail Project: Conceptual Design Information for the City of Portland Author: Tri-County Metropolitan Transportation District of Oregon Year: 1981 Title: Banfield Light Rail Project: Conceptual Design Information for the City of Portland Author: Tri-County Metropolitan Transportation District of Oregon Year: 1981 Close

• 15. [Article] Light Rail Transit Station Zones: Technical Report

  Citation × Citation Citation Abstract Copy Title: Light Rail Transit Station Zones: Technical Report Author: Tri-County Metropolitan Transportation District of Oregon Year: 1977 Title: Light Rail Transit Station Zones: Technical Report Author: Tri-County Metropolitan Transportation District of Oregon Year: 1977 Close

• 16. [Article] Banfield Transitway Project Downtown Circulation Alternatives

  Citation × Citation Citation Abstract Copy Title: Banfield Transitway Project Downtown Circulation Alternatives Author: Tri-County Metropolitan Transit District Year: 1977 Title: Banfield Transitway Project Downtown Circulation Alternatives Author: Tri-County Metropolitan Transit District Year: 1977 Close

• 17. [Article] Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems

  The Tri-County Metropolitan Transportation District of Oregon (Tri-Met) is one of about 30 metropolitan transit agencies that have deployed both automatic vehicle location (AVL) and automatic passenger ...

  Citation × Citation Citation Abstract Copy Title: Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems Author: Strathman, James G. Year: 2002 The Tri-County Metropolitan Transportation District of Oregon (Tri-Met) is one of about 30 metropolitan transit agencies that have deployed both automatic vehicle location (AVL) and automatic passenger counter (APC) systems (Casey, 1999). These technologies are important components of the agency’s new automated bus dispatching system (BDS). The AVL and APC systems at Tri-Met recover comprehensive operations and passenger activity data at the bus stop level that is archived for later analysis. The agency has gained a reputation as an industry leader in the areas of data archiving and the application of archived data to performance monitoring and analysis. Prior to the implementation of AVL and APC technology, Tri-Met, like others in the transit industry, relied on costly manual data recovery. During lean budget years in the early 1980s, the agency began using stand-alone APCs instead of ride checkers, and recovered very little operating data beyond what was required for Federal Transit Administration reporting. With its AVL and APC systems, Tri-Met is now automatically collecting and archiving over 500,000 stop and event data records per day. Offline analysis of this data supports a wide array of agency activities. The transformation from scarce to abundant data has contributed to a variety of functional changes that have both enhanced service quality and improved efficiency. This report examines factors related to the development of Tri-Met’s BDS that have contributed to its success in data archiving and analysis. The organization of the report includes a description of the BDS, a review of the types of analyses that have been supported by archived data, a discussion of factors that influenced decisions made on the design of the system, reflections on unrealized expectations and missed opportunities, and concluding observations. Title: Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems Author: Strathman, James G. Year: 2002 The Tri-County Metropolitan Transportation District of Oregon (Tri-Met) is one of about 30 metropolitan transit agencies that have deployed both automatic vehicle location (AVL) and automatic passenger counter (APC) systems (Casey, 1999). These technologies are important components of the agency’s new automated bus dispatching system (BDS). The AVL and APC systems at Tri-Met recover comprehensive operations and passenger activity data at the bus stop level that is archived for later analysis. The agency has gained a reputation as an industry leader in the areas of data archiving and the application of archived data to performance monitoring and analysis. Prior to the implementation of AVL and APC technology, Tri-Met, like others in the transit industry, relied on costly manual data recovery. During lean budget years in the early 1980s, the agency began using stand-alone APCs instead of ride checkers, and recovered very little operating data beyond what was required for Federal Transit Administration reporting. With its AVL and APC systems, Tri-Met is now automatically collecting and archiving over 500,000 stop and event data records per day. Offline analysis of this data supports a wide array of agency activities. The transformation from scarce to abundant data has contributed to a variety of functional changes that have both enhanced service quality and improved efficiency. This report examines factors related to the development of Tri-Met’s BDS that have contributed to its success in data archiving and analysis. The organization of the report includes a description of the BDS, a review of the types of analyses that have been supported by archived data, a discussion of factors that influenced decisions made on the design of the system, reflections on unrealized expectations and missed opportunities, and concluding observations. Close

• 18. [Article] An Evaluation of Automatic Passenger Counters: Validation, Sampling, and Statistical Inference

  While automatic passenger counters (APC's) offer the potential for cait effective data recovery and management, they also introduce new complications in the data recovery process. This report addresses ...

  Citation × Citation Citation Abstract Copy Title: An Evaluation of Automatic Passenger Counters: Validation, Sampling, and Statistical Inference Author: Strathman, James G. Year: 1989 While automatic passenger counters (APC's) offer the potential for cait effective data recovery and management, they also introduce new complications in the data recovery process. This report addresses three issues associated with the implementation of APC's, based on an evaluation of the recent experiences of the Tri-County Metropolitan Transportation District of Oregon (Tri-Met). First is the issue of validation, which is concerned with both the recovery and accuracy of APC passenger data. The second issue concerns the development of a sampling methodology for APC's compatible with UMTA's Section 15 reporting requirements. Third is the issue of inferring system-level ridership from sample data in the presence of selective APC failures. We find that the APC's are providing systematically accurate passenger counts. Analysis of the data recovered from September to November 1988 also shows that sampling was representative, based on the set of "trains" from which ridership data were successfully recovered. The initial selection/assignment of trains, however, was not representative. Given that APC's record operating data for all bus trips comprising a train assignment, a cluster sampling method is formulated that ensures an overall random selection of bus trips via a random first stage selection of trains. Selective data recovery failures can hamper the process of inferring system-level ridership from the sample estimates. For example, when failure rates vary by bus type or time of day, inferences drawn from the sample of recovered data may over or under-represent total system ridership. In such circumstances, post hoc stratification of the sample data may be required. We outline several alternative corrections based on a-priori knowledge of the mix of bus types and schedule characteristics in the system. Title: An Evaluation of Automatic Passenger Counters: Validation, Sampling, and Statistical Inference Author: Strathman, James G. Year: 1989 While automatic passenger counters (APC's) offer the potential for cait effective data recovery and management, they also introduce new complications in the data recovery process. This report addresses three issues associated with the implementation of APC's, based on an evaluation of the recent experiences of the Tri-County Metropolitan Transportation District of Oregon (Tri-Met). First is the issue of validation, which is concerned with both the recovery and accuracy of APC passenger data. The second issue concerns the development of a sampling methodology for APC's compatible with UMTA's Section 15 reporting requirements. Third is the issue of inferring system-level ridership from sample data in the presence of selective APC failures. We find that the APC's are providing systematically accurate passenger counts. Analysis of the data recovered from September to November 1988 also shows that sampling was representative, based on the set of "trains" from which ridership data were successfully recovered. The initial selection/assignment of trains, however, was not representative. Given that APC's record operating data for all bus trips comprising a train assignment, a cluster sampling method is formulated that ensures an overall random selection of bus trips via a random first stage selection of trains. Selective data recovery failures can hamper the process of inferring system-level ridership from the sample estimates. For example, when failure rates vary by bus type or time of day, inferences drawn from the sample of recovered data may over or under-represent total system ridership. In such circumstances, post hoc stratification of the sample data may be required. We outline several alternative corrections based on a-priori knowledge of the mix of bus types and schedule characteristics in the system. Close

• 19. [Article] Using Multimodal Performance Measures to Prioritize Improvements on US 101 in San Luis Obispo County

  The US 101 Corridor Mobility Master Plan in San Luis Obispo was a two-year planning effort that evaluated the 70 mile corridor on 12 performance measures. This collaborative effort was led by the San Luis ...

  Citation × Citation Citation Abstract Copy Title: Using Multimodal Performance Measures to Prioritize Improvements on US 101 in San Luis Obispo County Author: Berry, Jessica Year: 2015 The US 101 Corridor Mobility Master Plan in San Luis Obispo was a two-year planning effort that evaluated the 70 mile corridor on 12 performance measures. This collaborative effort was led by the San Luis Obispo Council of Governments (SLOCOG). Performance based planning is becoming more important for agencies receiving State and Federal funding. Smaller, rural regional agencies will have to find ways to collect, report, and use performance metrics with limited resources. SLOCOG's first performance-based planning effort was the US 101 Corridor Mobility Master Plan, funded through a State grant. Funding for this project came from a Partnership Planning Grant awarded by the California Department of Transportation (Caltrans) along with SLOCOG matching funds. The study team — made up of staff from 6 cities, the county, SLOCOG, Caltrans, the Air Pollution Control District, and the Regional Transit Authortiy — evaluated the corridor using 12 performance metrics and input from the public. 140 project alternatives were evaluated on several measures of effectiveness to determine which improvements were more beneficial to the corridor. SLOCOG used the results of this study to both plan for and fund improvements on US 101 through the Regional Transportation Plan and programming documents. Title: Using Multimodal Performance Measures to Prioritize Improvements on US 101 in San Luis Obispo County Author: Berry, Jessica Year: 2015 The US 101 Corridor Mobility Master Plan in San Luis Obispo was a two-year planning effort that evaluated the 70 mile corridor on 12 performance measures. This collaborative effort was led by the San Luis Obispo Council of Governments (SLOCOG). Performance based planning is becoming more important for agencies receiving State and Federal funding. Smaller, rural regional agencies will have to find ways to collect, report, and use performance metrics with limited resources. SLOCOG's first performance-based planning effort was the US 101 Corridor Mobility Master Plan, funded through a State grant. Funding for this project came from a Partnership Planning Grant awarded by the California Department of Transportation (Caltrans) along with SLOCOG matching funds. The study team — made up of staff from 6 cities, the county, SLOCOG, Caltrans, the Air Pollution Control District, and the Regional Transit Authortiy — evaluated the corridor using 12 performance metrics and input from the public. 140 project alternatives were evaluated on several measures of effectiveness to determine which improvements were more beneficial to the corridor. SLOCOG used the results of this study to both plan for and fund improvements on US 101 through the Regional Transportation Plan and programming documents. Close

• 20. [Article] Utilizing High-Resolution Archived Transit Data to Study Before-and-After Travel-Speed and Travel-Time Conditions

  Travel times, operating speeds, and service reliability influence costs and service attractiveness. This research outlines an approach to quantify how these metrics change after a modification of roadway ...

  Citation × Citation Citation Abstract Copy Title: Utilizing High-Resolution Archived Transit Data to Study Before-and-After Travel-Speed and Travel-Time Conditions Author: Glick, Travis B Year: 2017 Travel times, operating speeds, and service reliability influence costs and service attractiveness. This research outlines an approach to quantify how these metrics change after a modification of roadway design or transit routes using archived transit data. The Tri-County Metropolitan Transportation District of Oregon (TriMet), Portland’s public transportation provider, archives automatic vehicle location (AVL) data for all buses as part of their bus dispatch system (BDS). This research combines three types of AVL data (stop event, stop disturbance, and high-resolution) to create a detailed account of transit behavior; this probe data gives insights into the behavior of transit as well as general traffic. The methodology also includes an updated approach for confidence intervals estimates that more accurately represent of range of speed and travel time percentile estimates. This methodology is applied to three test cases using a month of AVL data collected before and after the implementation of each roadway change. The results of the test cases highlight the broad applicability for this approach to before-and-after studies. Title: Utilizing High-Resolution Archived Transit Data to Study Before-and-After Travel-Speed and Travel-Time Conditions Author: Glick, Travis B Year: 2017 Travel times, operating speeds, and service reliability influence costs and service attractiveness. This research outlines an approach to quantify how these metrics change after a modification of roadway design or transit routes using archived transit data. The Tri-County Metropolitan Transportation District of Oregon (TriMet), Portland’s public transportation provider, archives automatic vehicle location (AVL) data for all buses as part of their bus dispatch system (BDS). This research combines three types of AVL data (stop event, stop disturbance, and high-resolution) to create a detailed account of transit behavior; this probe data gives insights into the behavior of transit as well as general traffic. The methodology also includes an updated approach for confidence intervals estimates that more accurately represent of range of speed and travel time percentile estimates. This methodology is applied to three test cases using a month of AVL data collected before and after the implementation of each roadway change. The results of the test cases highlight the broad applicability for this approach to before-and-after studies. Close