Traffic surveillance method and vehicle flow control in a road network

US6587779B1 · kind B1 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

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

Key dates

• Filing date: Apr 16, 2001
• Grant date: Jul 1, 2003
• Expiry date: Apr 16, 2021

Classification

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

Abstract

In a method for monitoring and controlling traffic states in a road traffic system current or predicted traffic states are determined for one or more points and a distinction is made between the three types of traffic states: free-flowing traffic, slow-moving traffic and stationary traffic. Vehicle inflow into the traffic system is then controlled as a function of the detected traffic states. The state monitoring method is configured to detect phase transitions between free-flowing and slow-moving traffic and/or stationary traffic states, which can be detected or predicted by means of specified criteria. Furthermore, according to the invention the vehicle inflow into the monitored traffic system section is controlled as a function of detected phase transitions between free-flowing and slow-moving traffic.