Parameter Estimation for Traffic Noise Models Using a Harmony Search Algorithm

Table 1

Vehicle types used in this study.

Type		Specification
Heavy vehicle	Large vehicle	(i) Trucks equipped with three or more axles, which are; greater than 8 tons or above 5-ton cargo trailers; (ii) Buses providing 30 or more passengers; (iii) Large special purpose vehicles
	Medium vehicle	(i) Trucks equipped with two axles; (ii) Buses providing less than 30 passengers
Light vehicle	Light truck	Light trucks equipped with 50 to 2000 cc engine
	Car	Car designed for the transportation of less than and equal to 10 passenger.