TMaaS: Traffic management as a service using cloud in VANETs

In vehicular ad hoc networks (VANETs) the network services and applications (e.g., safety messages, vehicle navigation data) require an exchange of vehicle and event location information. VANET is an important research field of wireless sensor networks providing different applications such as real time traffic information for on road vehicles and related authorities. The integrated model of VANET with Cloud Computing Services (SaaS, PaaS and IaaS), supports many of the real time applications such as vehicle tracking, lane changing, accident detection etc. In this paper we propose the TMaaS: Traffic management as a service in vehicular networks by using the integrated model of VANET and Cloud Computing Services. We have designed a hardware prototype for vehicular speed and location tracking, efficient lane changing and accident detection on real time basis. We have proposed an idea to integrate this hardware system with the cloud service to carry out the data transfer from vehicles to the Central Cloud in a real-time environment for real-time traffic management services. The data of a particular area, stored in the central cloud can be accessed by the traffic monitoring system of that particular area on realtime basis. We have also tested the hardware on road along with radio modules (433 MHz Tx, Rx) to exchange the information. Lastly we have simulated the model using Simulation of Urban Mobility (SUMO) and Network Simulator-2 (NS2) software. The test results show that the system is 75% efficient with respect to the graphs plotted between vehicle movement v/s speed of vehicle and vehicle movement v/s lane changing.