Abstract
The phenomenon of traffic flows in almost all major cities of Indonesia is large dominance in the use of motorcycles. The change in the proportion of motorcycle users on the streets reaches more than 50%. The author will discuss the effect of motorcycle volume proportion on traffic flow parameters such as speed and density. This research has been conducted at Ampang street with 4 lanes 2-way undivided type and Adinegoro street with 4 lanes 2-way divided type in Padang. By using Video Image Processor survey method, the data of traffic volume, and time travel of the vehicle for 12 hours were obtained. Further data is processed and the results are plotted into the graph by linear regression method. The results showed that the highest proportion of motorcycle volume of 75.9% occurred on Raya Ampang street and the lowest by 53.2% occurred on Adinegoro street (to the North). The result of linear regression analysis where proportion of motorcycle volume (p) as variable x and space-mean-speed (S) as variable y is S = -0.687(p) + 93.467, R2 = 0.8582 at Ampang street, S = -1.3273(p) + 143.75, R2 = 0.8153 at Adinegoro street (to the south), and y = -1.3861(p) + 131.94, R2 = 0.7882 at Adinegoro street (to the north). Then the relationship between space-mean-speed, density, and traffic volume analyzed.
Highlights
In many ASEAN countries, motorcycles are a popular vehicle
Vehicle classification is divided into three categories, namely, motorcycle (MC), light vehicle (LV), and heavy vehicle (HV)
From the figure obtained that the highest space-mean-speed on the Ampang street occurred at 1.00-2.00p.m. is 47.8 km/hour
Summary
In many ASEAN countries, motorcycles are a popular vehicle. The proportion of two-and three-wheeled vehicle of some ASIAN members was high as Vietnam (95%), Indonesia (73%), and Malaysia (49%). The proportion of motorcycle on Malaysian roads varies from 35-75% depending on states [1]. Kusnandar’s study on inter-city roads resulted in the proportion of motorcycle users on the streets reaches 60-70% [2]. In West Sumatera Province, the motor vehicles development from 2012 to 2013 has increased in each mode of transportation with the average percentage of 5.81%, where motorcycles were the mode with the most massive increase of 10.62% [3]. The result of research on urban roads on Bypass Padang road segments was the proportion of motorcycle volume ranging from 59.17-79.52% of traffic volume during peak hour [4]
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