Based on the summary of research context of synchronization development between traffic control and information technology,the urban traffic signal control at isolated intersections and arterial streets under the environment of VII (Uehicle infrastructure integration) was analysed,taking the characteristic of traffic information collection under VII into account.Moreover,the challenge and opportunity of traffic control under VII was also illustrated.It is concluded that the future research on traffic control under VII should focus on evolved traffic flow model,probe data based MOE (measurement of effectiveness) of signal control strategy in real time and specific modes oriented signal control strategy.