Traffic is composed by pedestrians and various types of vehicles.Drivers of vehicles and pedestrians are affected by physical and pshychological factors. Vehicles have various static and dynemic characteristics.Traffic planning deals with estimation of pesent traffic,future trffic and need of trffic.Geometric design of transporatain facilities are based upon trffic survey.Various traffic signs and pavement markings are used to guide,warn and regulate traffic. For convinient,efficient and economical transportation traffic planinng is important