Procurement procedures and specifications for performance measure capable traffic infrastructure data collection systems.

Details

• Alternative Title:
  Joint Transportation Research Program Technical Report Series : Civil Engineering
• Creators:
  Day, Christopher M. ; Brennan, Thomas M. ; Ernst, Joseph M. ; Sturdevant, James R. ; Bullock, Darcy M.
• Corporate Creators:
  Purdue University. Joint Transportation Research Program
• Corporate Contributors:
  Indiana Department of Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic control devices
  • Traffic signal hardware
  • Traffic signals
  • Signalization
  • Traffic signal timing
  • Optimization
  • Performance measurement Traffic signals
  • Traffic signal timing
  • Traffic signal optimization
  • Traffic signal architecture
  More +
• Publication/ Report Number:
  FHWA/IN/JTRP-2011/18
• Resource Type:
  Tech Report
• Geographical Coverage:
  Indiana
• Edition:
  Final report.
• Corporate Publisher:
  Purdue University. Joint Transportation Research Program
• Abstract:
  Traffic signal systems represent a substantial component of the highway transportation network in the United ; States. It is challenging for most agencies to find engineering resources to properly update signal policies and ; timing plans to accommodate changing traffic demands. Upgrading existing systems can achieve incremental ; benefits, but do not address the fundamental problem that information about system performance is not ; communicated to the agency in a meaningful or systematic way. This project developed a collaborative pilot ; deployment partnership between a large public agency, university, and commercial equipment manufacturers to ; define an architecture for a centralized traffic signal management system that can be used on a large geographic ; scale by both maintenance and technical services staff. This architecture leverages wireless IP communications to ; integrate performance measures into a database environment and a performance measure dashboard. ; In addition to this architecture, several uses of high resolution signal controller event data are presented. An ; extended discussion of a visualization technique called the “Purdue Coordination Diagram” is presented, which ; enables new methods for visualizing and assessing 24-hour corridor operations without field visits or searching ; through hours of recorded video. A new methodology for using data from peer intersections to estimate ; fundamental traffic flow characteristics is proposed. In this methodology, phase status from an upstream ; intersection is fused with downstream detector status to obtain link travel time and platoon dispersion ; characteristics. Finally, this data is integrated into an optimization engine for determining cycle length, phase ; sequence, and offsets.
  More +
• Format:
  PDF
• Funding:
  SPR-3409
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23891/dot_23891_DS1.pdf
• File Type:
  [PDF - 5.70 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:beddbd26e2752802d6d43f2766dbda4a0a4974d8c806a8f57f877613f2f1ba97ab3f93fda71901d3410ff9b48d5a88f38ec8c85399df1f1221859243d6898330