Estimating Space-Mean Speed for Rural and Suburban Highways in Malaysia

概要

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Space-mean speed is an important parameter in the capacity analysis of rural and suburban highway. The ability to estimate space-mean speed from time-mean speed or spot speed will assist the study to analyse more data, besides saving time and cost. This paper presents the linear regression models developed for estimating space-mean speed for rural and suburban highways in Malaysia. However, due to the different characteristics and driving behavior between two-lane highways and multilane highways, using only one general equation to estimate space-mean speed for both two-lane and multilane highways is unrealistic and inaccurate. Therefore, it is essential to derive separate relationships for two-lane highways and multilane highways in Malaysia. Hence, in this study, specific models for each road facility which are the two-lane highways and multilane highways were derived. Statistical analyses were also conducted and discussed in this paper. The models derived are statistically accepted.