I. Introduction
Traffic condition estimation by analyzing various sensor data is a popular and challenging task in modern days and lot of works have been done regarding the same [1] [2] [3]. In developing countries, honking is inbuilt as part of driving pattern [4]. The concept of determining traffic congestion based on honking rate is mainly applicable for developing nations where heavy honking is a common feature in congested roads. Generally the vehicular movement is very slow in congested traffic and the noise level is very high due to heavy vehicular horn. So accelerometer and microphone can be two very important sensors for traffic condition estimation [9] in developing nations.