Intelligent public transport system (IPTS) is new trend which is been emerging at various cities, the main aim of this system is to improve efficiency and quality of the system this will increase in use of system and more people will be attracted to public transport. IPTS is future and with time, new features are added (such as bus pile up avoidance system, passenger counting and driver warning) in to the system. Bus Frequency or headway optimization can be done if bus pile up or bus bunching is minimized or removed, in this paper wireless methods, packet protocol and systems are described and implemented to optimize bus frequency and avoid bus pile, we describe this system as bus pile-up avoidance system. A bare minimum 3 different hardware is designed for BUS module, Stand Module and Depot Module. Currently packet protocol is tested using low cost 2.4Ghz RF modules similar IEEE 802.15.4 Modules.

Very common and biggest problem facing by the developing and developed nations is traffic; citizens face congestion and high amount of pollution with the expansion of the traffic. This paper benefaction on formulation of a velocity optimization algorithm (VOA) that broadcasts traffic signal ID, state of the traffic signal and information about the timing so that driver can pass the signal safely by nullifying Environment Unfriendly Actions (EUF) and without spending much time on the signal thereby improving the efficiency of the system. In the proposed system communication takes place between vehicle and traffic signal (TLSV) and also between two vehicles (V2V). This communication is usually based on the data information supplied by the traffic signal. By utilizing these information vehicles that are approaching traffic signal will adapt their speed, which supports for reduction in the fuel emission and consumption.