INFLUENCE OF VARIABLE SPEED LIMIT AND DRIVER INFORMATION SYSTEM ON KEY TRAFFIC FLOW PARAMETERS ON A GERMAN AUTOBAHN

This paper examines key freeway capacity parameters for an 18-kilometer segment of a German autobahn that contains a surveillance system and a variable speed limit and congestion level information system using overhead variable message signs located on gantries. This paper includes an analysis of the relationships between vehicle flow, density, and speed surrounding an active bottleneck. The relationships between key traffic flow parameters have been based on reproducible traffic features observed on multiple days. Further, the speed/flow relation for various proportions of heavy vehicles is investigated and results are presented. For the covering abstract see ITRD E134653.

• Authors:
  • BOICE, S
  • BERTINI, R L
  • AHN, S
  • BOGENBERGER, K
• Publication Date: 2006

Language

• English

Media Info

• Pagination: 8p
• Serial:
  • PROCEEDINGS OF THE 13th ITS WORLD CONGRESS, LONDON, 8-12 OCTOBER 2006

Subject/Index Terms

• TRT Terms: Bottlenecks; Conferences; Driver information systems; Freeways; Intelligent transportation systems; Speed; Speed limits; Surveillance; Traffic congestion; Traffic flow; Trucks
• Geographic Terms: Germany
• ITRD Terms: 630: Bottleneck; 8525: Conference; 632: Congestion (traffic); 8763: Driver information; 8125: Germany; 8735: Intelligent transport system; 1236: Lorry; 2752: Motorway; 5408: Speed; 624: Speed limit; 9101: Surveillance; 671: Traffic flow
• Subject Areas: Motor Carriers; Operations and Traffic Management; I71: Traffic Theory; I73: Traffic Control;

Filing Info

• Accession Number: 01087651
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jan 29 2008 11:07AM