Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

Technology Category/ Market

Category –Automotive

Applications – Transport systems, Automobiles, Traffic control systems, Communication, Automation,

Industry –Automotive/ Automation

 Market -The global intelligent transportation system market is projected to grow from $22.91 billion in 2021 to $42.80 billion in 2028, at a CAGR of 9.34%

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Problem Statement

  • Inefficient traffic signal management is a common issue at signalized intersections.
  • Current signal design method is obsolete and developed for homogeneous and lane based traffic
  • Hence, there is a need for a system that can optimize the duration of traffic signals.

Technology

  • The present invention discloses a  system and a method for minimizing delay at a signalized intersection by estimating optimal cycle time for traffic signals under heterogeneous and lane-less traffic conditions.
  • A processor-Central processing unit for executing the system’s operations; to compute an intersection delay model and develop the signal control model

Intersection delay model:

  • Estimate the delay experienced by one or more vehicles as they pass through the signalized intersection.

Signal control model

  • Optimize the signal control model to determine a signal duration that minimizes the delay
  1. Intersection Delay Model is  based on the Delay Parameters  such as Saturation Flow Rate in PCU and Number of Parallel Queues
  2. Signal Control Model to determine a signal duration for the signalized intersection to minimise the delay experienced by the one or more vehicles.
  3. The processor is to communicate the signal duration to at least one traffic signal unit, located proximate to the signalized intersection to control the duration of indication of the traffic signal, the traffic signal comprising at least one of a red signal and a green signal.
  4. The processor calculates a Passenger Car Equivalent (PCE) value for the vehicles belonging to various vehicle classes.
  5. The processor also calculates the number of parallel channels occurring within a single lane

Key Features/ Value Proposition

Technical Perspective:

  • Manages traffic control in multi-phase intersection, characterized by multiple passages converging to form a complex intersection.
  • The method computes an intersection delay model to estimate the delay experienced by vehicles at a signalized intersection and; a model that differentiate the intersection delay model with respect to the cycle time to obtain a signal control model.

User Perspective:

  • By adjusting the signal duration, the system aims to minimize vehicle delay and improve traffic flow efficiency.
  • Ability in standardizing the impact of different vehicle types and lane-less movement.

Questions about this Technology?

Contact for Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. LELITHA DEVI V

Department of Civil Engineering

Intellectual Property

  • IITM IDF Ref. 2620
  • IN 536088 (PATENT GRANTED)

Technology Readiness Level

TRL-5

Technology Validated in Relevant environment 

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