VOLUME 1 │ NUMBER 1 │ OCTOBER 2020
http://world.journal.or.id/index.php/wjitISSN: 2963-1637 (online)
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Traffic Accident Analysis on Tanjung Perak Arterial Road Section Surabaya
Fajar Rizqi Firmansyah, Sri Wiwoho Mudjanarko Civil Engineering Study Program, Faculty of Engineering Universitas Narotama Surabaya, Jl. Arief Rahman Hakim No.51
fajarriski55@gmail.com, sriwihono.filemk@gmail.com
Abstract
Traffic accidents are one of the biggest causes of death in Indonesia. The number of victims that is large enough to provide economic impacts (material losses) and social are not small, various preventive efforts to improve traffic by involving various parties related to the results are not as expected. Traffic accidents are a problem that requires serious treatment considering the amount of loss caused. The Tanjung Perak Surabaya road section is more precisely along Jalan Tambak Osowilagun Road - Jalan Gresik Gadukan Utara, which is a congested arterial road. Based on accident records in this area obtained from the Tanjung Perak Police Precinct of Surabaya, during 2019 there were approximately 100 accidents. In this study accident data were collected from the Tanjung Perak Police Station in Surabaya. The analysis begins by determining the factors causing the accident, the level of probability, the characteristics of the accident and the black spot area. Use questionnaires and analyze Cartesian diagrams to find out the relationship between the number of accidents and vehicle type factors. This descriptive analytical study with a quantitative approach intends to get a picture of traffic accidents that occur in users of the Tanjung Perak Surabaya Road section based on traffic accident data reports at the Tanjung Lantas Police Traffic Unit Traffic Unit in Tanjung Perak Surabaya from 2015 to 2019.
Keywords:
Accident, Black Spot, Cartesian, Probability
1. Introduction
1.1. BackgroundTransportation is basically an activity of moving goods or people from one place to another with or without means. This movement must take a land, sea or air transportation route. Here the road as one of the transportation media which plays an important role in the process of human activities to meet their needs. The road is likened to the most important media which, if disturbed, will cause something that can harm the users such as traffic jams and accidents (Tamin, 1997).
The number of motor vehicles in Indonesia in 2014 was 114.21 million vehicles while in 2015 it became 121.390 million units which means an increase of 6.29% units consisting of 13.48 million passenger cars, then 6.6 million freight cars units, as well as bus cars with a total of 2.4 million units and the most dominant motorcycle of 98.88 million units (Limantara, Candra and Mudjanarko, 2017). The density causes an error in driving called an accident.
Accidents are very fast, unexpected, unexpected events and are the culmination of a series of ill-fates.
Accidents can be caused by several factors including: Human factors Accidents caused by driver factors such as age, health, physical condition, education, nature of awareness of traffic signs, speed and others. Vehicle factors Accidents caused by the condition of the vehicle such as the condition of the brakes, engine condition, tire condition and others. Road factors Accidents caused by road conditions that do not meet the requirements include: Damage to the road surface. For example there are large holes that are difficult to avoid by drivers and slippery road conditions in the rainy season. Imperfect road construction is an increase and decrease in roads that are too steep, roads that are too narrow, and the strength of the road that is not in accordance with the existing load. Environmental factors Road environment conditions that must be considered are crossing roads both human or animal, as well as unfavorable weather such as heavy rain, floods, fog and others (Oglesby and Hicks, 1998).
These conditions have certainly been attempted by several related agencies, based on this, research on traffic accidents needs to be done so that it is expected to be useful in formulating prevention methods or at least can reduce and minimize accidents. For this reason, a transportation plan is needed, which is a process that aims to develop a transportation system that allows people or goods to move or move safely and inexpensively (Tamin, 2000).
The city of Surabaya, as one of the areas that becomes the link of traffic flows between cities, whether by land, air or sea, this makes the area has a high volume of traffic flow. In the city of Surabaya there are also
VOLUME 1 │ NUMBER 1 │ OCTOBER 2020
http://world.journal.or.id/index.php/wjitISSN: 2963-1637 (online)
Attribution 4.0 International (CC BY 4.0)
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transportation facilities such as terminals and there are a lot of office buildings, factories, markets, banks located along the main roads in the city of Surabaya. The condition of the area causes the traffic flow of the intas to become congested and this can cause various traffic problems such as frequent traffic jams and accidents.
The high mobility in the city of Surabaya can be seen from the number of public transportation seen on the city road segments. This is also supported by the availability of transportation infrastructure, namely in the city of Surabaya, which is crossed by an inter-city road (primary arterial road), which is the road that connects the city of Surabaya with the city of Gresik. These pathways have high mobility so it is possible to have a high risk of accident rates. The smooth mobility of the population will be greatly influenced by the availability of infrastructure. With the availability of transportation facilities and infrastructure, it will be easier to carry out mobility between parts in the region or with other regions.
Tambak Osowilagun Road Section - Jalan Gresik Gadukan Utara is one of the high risk road accidents.
One of the causes is the driver such as age, health, physical condition, education, nature of awareness of traffic signs, driver speed and so on. Therefore it is necessary to conduct research on traffic accident analysis on Jalan Tambak Osowilagun-Gresik Gadukan Utara Street so that it can be reduced or minimally suppressed
.
2. Methodology
This type of research was conducted using descriptive research. The chosen location is in the North Surabaya Region, Benowo District, Asemrowo District and Krembangan District, Tambak Osowilagun Street - Gresik Gadukan Utara Street (STA 0 + 000 - 10 + 500) which can be seen in Figure 1. Types of data used are primary data and secondary. Primary data is by distributing questionnaires to respondents around the study site.
The distribution of this questionnaire aims to determine the response of respondents to the factors causing traffic accidents. And secondary data is the number of traffic accidents.
1. Characteristics of vehicles involved in accidents
2. Profession of victims and perpetrators involved in accidents 3. Age of perpetrators and victims of traffic accidents
4. Type of accident based on position 5. Factors causing traffic accidents
Figure 1. Research sites
The minimum sample needed by researchers to distribute surveys to respondents is 100 sheets based on the calculation of Slovin formula with an error margin or an error rate of 10%. After the questionnaire was distributed and the answers obtained. The results of data processing are then carried out data analysis about:
1. Determine black spot dots
To be able to determine the secondary black spot data points obtained will be analyzed by the cumulative summary method which will get the segment that has the highest cumulative summary value.
a. Look for the mean value (W)
The equation used to calculate the mean value from secondary data, namely:
……….(1)
Where W = mean number, = Amount of accident, L = number of station, T = Periode
