Fully Adaptive Traffic Management Systems

Fully Adaptive Traffic Management Systems

The Full Adaptive Traffic Management System (ATAK) is an operating system in which the plan terms of signalized intersections are optimized according to parameters such as the volume of traffic created, queuing and new terms are implemented in real time manner with the purpose of minimizing the vehicle passage times and average stops in a road network.

• ATAK intervenes gridlocks caused by increased traffic volume in a real time manner, speeds up the flow of traffic and decreases delay times.
• ATAK assesses the data it collects from the field in its center and instantly intervenes by optimizing intersection and network signal times.
• This feature of the ATAK adaptive signal control not only provides a fast response to the incidents that can occur in traffic volume but also creates ideal signal terms for the whole system.
• In this manner, it decreases the travel times on the traffic road network and the emission values.
• The Full Adaptive Traffic Management System (ATAK) implemented by ISBAK, with the support of TUBITAK with the purpose of providing flowing of vehicle traffic in the city decreases vehicle delay times by 15% to 30% in the intersections that it is installed.

• Online and instant optimization of traffic signal times based on parameters such as the traffic volume created, queuing etc.,
• Being operable in isolated (single intersection) and coordinated (group of intersections) modes,
• Being operable in adaptive mode within the period of time desired or in another control strategy mode within the period of time preferred,
• Web-based online system monitoring interface,
• Capacity to store and report all the data produced in the system,
• System management interface,
• User-friendly designing interface to be used for planning a intersection or a group of intersections,
• Statistical data production and reporting,
• Tracking system alerts and results,
• 15%-30% improvement in vehicle waiting durations.

ATAK initially checks, filters and analyses the data (number of vehicles and occupancy percentage) obtained from the intersection locations, and then generates a traffic model for the road network selected. The optimization algorithm developed within ATAK, by using the data obtained, prepares a real-time based signal duration chart and applies it to the related site. Genetic algorithms are used for optimization of cycle time, offset values and green light durations. Since the system has a structure open to developments, different optimization algorithms can also be used.