ANALYSIS OF FACTORS CAUSING TRAFFIC ACCIDENTS ON SULTAN AGUNG STREET, BEKASI

Sultan Agung Street is the main road in Bekasi City which has a length of 5.5 km. On the Sultan Agung Street, there are many settlements and public facilities. However, this condition was not matched by adequate road infrastructure and public transportation facilities and infrastructure. This causes an increase in the volume of traffic and potential for accidents on Sultan Agung street. The purpose of this study was to determine the dominant causal factors of accidents and to determine efforts to prevent accidents on Jalan Raya Sultan Agung with the Upper Control Limit (BKA) and Upper Control Limit (UCL) methods. Based on the analysis of Sultan Agung Bekasi Street included in the category of accident-prone roads because there are two road segments having AEK values exceeding the BKA and UCL values. The coordinate point of the location with the highest AEK value is the third segment with an AEK value of 195 where the BKA value is 122,894 and the UCL value is 119,333. The most common type of accident is a Front-Rear hit by 37.5% of the total number of accidents. Time of accidents most often occurs at night with a percentage of 56% of the number of accidents.


INTRODUCTION
West Java Province is one of the provinces with the largest population in Indonesia with a population of 49.02 million people. The three cities / cities that have the most population are Bogor with a population of 5.8 million, Bandung with a population of 3.7 million, and Bekasi with a population of 3.7 million. Sultan Agung Street is one of the main roads in Bekasi City. Sultan Agung Street has a length of 5.5 km which connects Bekasi Raya Street with Jend. Sudirman Bekasi Street. On the side of Sultan Agung Street, there are many settlements, education centers, commercial areas, hospitals, markets and Bekasi City Parks. This affects the level of traffic density on Sultan Agung Street. However, this condition is not balanced with adequate road infrastructure and public transportation. Seen from the many local roads leading directly to the arterial road which resulted in many points of conflict between road users. Of course this has caused an increase in traffic volume on Sultan Agung Street and also increased the potential for accidents.
According to [12], the division of authority of roads is divided into several sections namely: 1. National Road, is the road that connects provinces (between provinces) in an area under the authority of the State in this case the Ministry of Public Works where if in the area held by a Specific Non Vertical Team (SNVT) 2. Provincial Road, the road that connects between cities / cities in a province 3. City Roads, public roads on the secondary road network in the city. 4. Regency Road, the road that connects between villages / villages 5. Village roads, primary environmental roads and primary local roads that do not include City roads and are public roads that connect the area and / or between settlements within the village. A traffic accident is an unexpected and unintentional road event involving a vehicle with or without other road users resulting in human casualties and / or property loss. Traffic accidents can be caused by negligence of road users, vehicle mismanagement, and road and / or environmental roadworthiness. Traffic accidents are classified into three, namely minor traffic accidents, moderate traffic accidents, and heavy traffic accidents. Minor traffic accidents are accidents that result in damage to vehicles and / or goods. A moderate traffic accident is an accident that causes minor injuries and damage to vehicles and / or goods. Heavy traffic accidents are accidents that result in death or serious injury [18].

Accident Characteristics Accidents Based on Accident Victims
Based on [20], the classification of victims of traffic accidents is as follows: 1. Death victim, is a victim who is confirmed to have died as a result of a traffic accident within a maximum period of 30 (thirty) days after the accident. 2. Victims of serious injuries, are victims who have sustained permanent disability or must be treated for more than 30 (thirty) days since the accident occurred. 3. Victims of minor injuries, are victims who do not need help or treatment in hospital or treated for no more than 30 days.

Accident Based on Collision Type
Traffic accidents are divided into several types based on collisions that occur namely: 1. Front-front collision, is a type of collision between two speeding vehicles where the two fronts of the vehicle collide with each other. 2. Front-rear collision, is a type of collision between two or more vehicles that go in the same direction where one front of the vehicle crashes into the back of the other vehicle. 3. Side collision -side, is a type of collision between two speeding vehicles where the side of one vehicle crashes into the side of the other vehicle. 4. Front-side collision, is a type of collision between two vehicles where the front of the vehicle crashes into the side of another vehicle. This type of collision is common at intersections or parking lots. 5. Rolled over (Rollover), is a type of collision where the vehicle experiences a roll or overturn.
The cause of overturning is usually due to vehicle instability when it is at high speed corners or sharp turns. Accidents Based on the Time of the Accident   Road segments with accident rates or AEK that are above the BKA or UCL lines are defined as accident-prone locations.

Research Location and Time
Research Analysis was conducted on Sultan Agung Street, Bekasi. The time of writing this research was carried out in September 2018 -January 2019 using data on traffic accidents in 2015 -2018.

Methods of Analyzing Accident Management Efforts
The purpose of this analysis is to provide an effort to handle accidents at the accident location on Sultan Agung Street based on the accident situation at that location. This analysis can be done after seeing the types of accidents that are considered dominant at accident-prone locations. After obtaining the dominant type of accident at the accident site, a survey of the road conditions and / or completeness of the road safety facilities at the accident-prone location to obtain appropriate handling recommendations. Primary data were obtained from the results of a field survey on the Sultan Agung Street section using a checklist form and comparing the actual conditions in the field with minimum road service standards regarding the substance of safety at accident prone locations. Based on the survey results of road conditions, traffic sign, and road infrastructure, there are several factors that cause traffic accidents on Sultan Agung Street, rhat is:

Sultan Agung Bekasi Street is a provincial road that connects Bekasi City and East Jakarta
City where the level of mobilization on Sultan Agung Street is quite crowded, especially during rush hour. The majority of people who work in East Jakarta and North Jakarta areas pass through Sultan Agung Street for driving access. However, due to the high volume of vehicles on Sultan Agung Street, the condition of road facilities and infrastructure is still inadequate. 2. The large number of factory areas, education centers, hospitals, shops, and other public facilities along Sultan Agung street causes many pedestrians to walk along the road or cross. However, in Figure 4.3, there is still a lack of placement of zebra crossing or faded from zebra crossing and road markings causing less visible to riders. Plus there are also several road points that are not affected by street lighting due to obstruction of street lights by trees.

Analysis of Accident Prone Areas
The analysis of accident-prone areas in this study uses the Accident Equivalent Number (