Method for the automatic monitoring of traffic including the analysis of back-up dynamics

US5861820A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Boris Kerner · Stuttgart, DE
• Heribert Kirschfink · Aachen, DE
• Hubert Rehborn · Aachen, DE

Key dates

• Filing date: Nov 14, 1997
• Grant date: Jan 19, 1999
• Expiry date: Nov 14, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/0104
• WIPO field: Control
• WIPO sector: Instruments

Abstract

In a method for automatically monitoring traffic, traffic data are recorded at several measuring points of the traffic network. The time-dependent positions of the upstream back-up flank and of the downstream back-up flank are estimated continuously according to characteristic relationships which take into account the flow and the density of the traffic in the back-up, the point in time at which the upstream back-up flank passes a respective first measuring point, the point in time at which the downstream back-up flank passes this measuring point as well as the flow and the average vehicle speed at this first as well as at a second measuring point which is situated upstream of the upstream back-up flank.