Vehicular ad hoc networks (Computer networks) Intelligent transportation systems 8 Computer network protocols 6 Computer networks 4 Routing protocols (Computer network protocols) 4 Security measures 3 Wireless communication systems 3 Design and construction 2 Internet of things 2 Management 2 Mobile communication systems 2 Mobile computing 2 Traffic safety 2 City planning 1 Cognitive radio networks 1 Computer programs 1 Computer security 1 Congestion pricing 1 Digital television 1 Electronic traffic controls 1 Equipment and supplies 1 Home automation 1 Internet television 1 Machine learning 1 Mathematical model 1 Mathematical models 1 Quality control 1 Roads 1 Roaming (Telecommunication) 1 Routing (Computer network management) 1