01152744

Component

https://doi.org/10.3141/2171-01

http://scholar.google.com...gers&publication_year=2010

Acceleration and deceleration characteristics are basic driving behaviors that influence signal control and road geometry. Most previous studies focused on acceleration and deceleration rates under ideal conditions, i.e., on characteristics of lead vehicles, which might not adequately reflect the full spectrum of traffic operations. This paper presents a methodology for determining acceleration and deceleration rates and zone lengths for vehicles approaching and leaving intersections under likely uncongested traffic conditions, regardless of queue position. These characteristics are derived from speed profiles gained from vehicles equipped with Global Positioning System (GPS) instrumentation. With the speed profiles obtained from GPS-equipped vehicles, a series of data-processing algorithms is developed to measure the acceleration and deceleration behavior of vehicles approaching and departing an intersection. Acceleration and deceleration rates and zone lengths are estimated for several road categories. These zone lengths are compared with recommended values from AASHTO’s "A Policy on Geometric Design of Highways and Streets" (Green Book), in which it is seen that the zone lengths under light traffic conditions are longer than the Green Book’s values. In addition, determined acceleration and deceleration rates and zone lengths are found to depend on the underlying assumptions and calculation methods of the analysis.

01321756

10-0510

English

pp 1-10

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160407

Print

Figures (4) ; References (21) ; Tables (3)

Acceleration (Mechanics); Algorithms; Deceleration; Global Positioning System; Intersections; Signalized intersections

Free flow (Traffic); Stop-controlled intersections

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Jan 25 2010 10:16AM

• Evaluation of Traditional and Nontraditional Interchange Treatments to Preserve Service Life of Narrow Over- and Underpass Roadways
• Making the Most of an Existing System Through Access Management at Major Arterial Intersections
• Modeling and Evaluating Safety Impacts of Access Management Features in the Las Vegas, Nevada, Valley
• Modeling Operating Speed and Deceleration on Two-Lane Rural Roads with Global Positioning System Data
• Performance Analysis of Parallel Flow Intersection and Displaced Left-Turn Intersection Designs
• Proposal for Incorporating Public Transit Provisions into a State Highway Access Management Code
• Safety Evaluation of Offset Improvements for Left-Turn Lanes