| Summary: | In most recent car models, the collision avoidance mechanism is installed in the car such as Auto Braking System. This built-in technology uses sensor installed in the car to provide auto stopping mechanism for the car. This system is very useful when the car is on a certain distance range with the front car. However, the technology offered pays less attention to another situation where the front car is out of sensing range. In highways, sometimes a driver in a speeding car has problem estimating a very slow or stalled traffic ahead. When the situation happens, the speeding car is forced to have a sudden drop of speed that increases the chance of collision. If the distance between the rear and front car is less than the minimum safe distance, a collision is likely to happen. To solve this, we proposed a protocol to trigger an alarm system vehicle rear-end collision warning system in mobile application. This protocol applies an existing mathematical model to calculate safe speed and distance relationship as a threshold to trigger the warning system. We present an algorithm structure that can be programmed in a smartphone application for drivers safety upon entering a risky threshold. Since this protocol is to be applied in mobile phone applications, the minimal cost for collision avoidance system in high traffic highways and regardless of the type of vehicles as well its advancement in technology. © 2023 IEEE.
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