IVTIS: Autonomous Information Collecting and Broadcasting Model for VANETs

Autonomous vehicle traffic information systems are a relevant topic for next-generation traffic information Systems, as the existing centralized traffic information systems involve a large initial investment and high operating costs. Vehicle traffic information systems suffer from many problems such as the need to communicate large amounts of data, requiring a longer time for road network coverage, unsteady transmission, and the need for an automatic generation and update method for road network congestion information in a large-scale urban road network. To overcome these problems, here proposes an intelligent vehicular traffic information system (IVTIS) based on a vehicular ad hoc network (VANET). This system employs a local road network and rapid dissemination model (IVTIS-LNFRN) of congestion information based on link nodes for a large-scale urban road network, and it constructs the corresponding system models. We then use traffic simulation software to evaluate the feasibility of the IVTIS. Then analyze the dissemination effect of different traffic inflow volumes, information packet loss rates, and different rates of IVTIS vehicles.