Overloading vehicle impact analysis on the performance of toll road traffic

Transportation of goods using landline is still the main choice of business in Indonesia. To reduce logistics costs, some businesses often add cargo to freight vehicles so that they exceed the specified standard conditions. Heavy vehicles have low speeds on a toll road and this has a negative impact on other road users. Due to the presence of heavy vehicles, travel time increases. This study will analyze the negative impact of the presence of heavy vehicles that have overloaded (Overloading) on a toll road. The method used is derived from the Indonesian Highway Capacity Manual (MKJI) to calculate the traffic characteristics such as speed, volume, and degree of saturation as well as using the Highway Development and Management (HDM) 4 for vehicle consumption model. The results obtained showed heavy vehicle speed decreases as the load increases so the speed of traffic carried by the heavy vehicle overloading conditions lower than the speed of heavy vehicles with cargo load conditions according to the capacity. The linear regression equation between Speed to percentage overload is y =-11.018x + 46 153. Operating costs of heavy vehicles under higher overload conditions when compared to heavy vehicles with normal load conditions.