TY  - JOUR
T1  - Accident Frequency Model Based on Microscopic Characteristics of
Heterogeneous Traffic in Makassar City
AU - Halim, Hasmar AU - Adji Adisasmita, Sakti AU - Isran Ramli, Muhammad AU - Hamid Aly, Sumarni 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 6
SP  - 1820
EP  - 1827
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.1820.1827
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.1820.1827
KW  - Traffic accident frequency
KW  -microscopic traffic characteristic
KW  -heterogenous traffic
KW  -urban arterial
roads estimating
KW  -characteristics
AB  - Heterogeneous traffic in urban arterial roads are many developing cities in Makassar city, leads to
the high potential of traffic accident occurs in the cities. Regarding the issue, the present study aims to model
the traffic accident frequency which occurred in urban arterial roads which case study in Makassar city,
Indonesia. This study constructed the model based on microscopic characteristics of the heterogeneous traffic,
namely longitudinal distance and lateral distance between two nearby vehicles. The data collection involved
two stages. Firstly, the data collection for traffic accident characteristics which occurred in the city and
secondly, the traffic characteristics, namely traffic flow in arterial roads of the city. There were three steps in
constructing the traffic accident frequency model. The first step applied a micro-traffic simulation in calibrating
the microscopic characteristic values. The second developed a relationship model between traffic flow and both
microscopic traffic characteristics. The third step constructed the traffic accident frequency model using the
longitudinal and lateral distance between two nearby vehicles. The model was acceptable regarding root mean
square error test. The model is useful in estimating the traffic accident number in urban arterial roads in
developing cities where its traffic characteristic are heterogeneous.
ER  -