A Comparative Study of Fuel Consumption and Emission Estimation on Elevated and At-grade Road Using Global Positioning System (GPS)

Abstract

Key objectives of the study is comparative evaluation of fuel consumption/emission and travel time between elevated and at-grade road by the same origin-destination. Directly fuel consumption measurement is inconvenient. Recently, GPS dashcam camera is widely available and price is affordable. Speed and location trajectorial data from the dashcam can be detected. Then the data were immediately exported to the Power Based-Motor Vehicle Models where is used to estimate fuel consumption/emission i.e. CO, CO2, HC, NOx. Savings such as travel time and fuel are combined as the benefits gains more than 1,000 Mil.THB per year from using an alternative elevated road. Amount of greenhouse gas was also estimation. Additionally, comparative acceleration profiles between the elevated road and at-grade road, where has stop-and-go traffic condition, are used for accident probability estimation lower than at-grade road, and were reported.