Simulation models are mathematical/logical representations of real-world systems. Microscopic traffic simulation models have been playing an important role in traffic engineering and particularly in cases, in which field studies, involving extensive data collection, over a wide range, is difficult or expensive to conduct. As the available simulation models can only replicate homogeneous traffic flow, a model of heterogeneous traffic flow, named, HETEROSIM was developed to simulate heterogeneous traffic flow. In this model, a dynamic stochastic type discrete event simulation is adopted in which the aspects of interest are analysed numerically with the aid of a computer program. The model was validated using field observed data of traffic flow. Then, the model was applied to measure one of the fundamental charactertistics of traffic flow, namely concentration. It is a broader term encompassing both density and occupancy. Occupancy takes into account the traffic composition and speed, and hence, occupancy is more meaningful than density. The concept of occupancy can not be directly applied under heterogeneous traffic conditions, as the traffic has no lane discipline. In this paper, a new concept named, 'area-occupancy' is proposed to measure traffic concentration.

No abstract

No abstract

Object detection and classification in video is an important step in the video surveillance. We propose efficient moving object detection, classification and evaluate its parameter by alternating the algorithm in effective way. The techniques like image subtraction, threshold and foreground detection will be used for object detection and patterns are used for classification. Then frame by frame the objects are tracked and parameters like speed, velocity of motioned object will be calculated. Finally the proposed method will be proved that object in dynamic texture scenes are analyzed and parameter of moving object will be evaluated.

This paper presents the design, implementation and deployment of thermally stable LED fixtures that can be controlled wirelessly using ZigBee. To improve the longevity of LEDs, parameters like LED disconnection, driver feedback voltage and temperature of the designed LED fixtures have been monitored and controlled remotely. Energy saving results shows that the LED fixtures designed can be used as a replacement for T8 fluorescent lamps.