ANALYSIS OF THE EFFECTS OF OVERLOADING ON THE AGE OF THE TOLL ROAD CASE STUDY TANGERANG-MERAK KM 72 S/D

Economic growth that occurred in Indonesia requires adequate infrastructure. The large number of infrastructure which found in Indonesia is not accompanied by the compliance level of infrastructure users, the number of violations that occur causes a decrease in the life of a road. Overloading does not only causes road damage but also impacts on the lack of road safety. Therefore, research and analysis are carried out to find out how much influence is given by the overload on a road, in this case the age of the plan. The method which used to find out how big the impact of a normal charge is with remaining life, which is to compare the age of a normal load plan with overload. By this method it is necessary to know the Vehicle Damage Factor (VDF) which will later be used to find the cumulative ESAL of each vehicle condition, then with the cumulative ESAL that occurs can know the remaining life of a road. From the conducted analysis result, it was found that each vehicles had an increase in vehicle damage factor (VDF), as well as the cumulative ESAL that was previously planned to receive cumulative ESAL in the amount of 20.602.172 with the cumulative overloading of ESAL received to 284.426.068, due to the charge causing a decrease in remaining life is 4 years 9 months or decreased by 24%.


INTRODUCTION
Indonesia as one of the countries with the highest economic growth. The Central Statistics Agency said Indonesia's economic growth was at 5.07%, with the amount of economic growth having to be supported by adequate infrastructure, one of the important infrastructures was roads.
Roads are a very important infrastructure for mobilizing in land transportation, roads are also one of the driving forces of the economy and also as an infrastructure of community activities in various development sectors of the economic, social, political, cultural and security sectors. In addition, the road also provides a good solution for the smooth flow of traffic which has an impact on the smooth delivery of one region to another.
Large-scale road construction by the government is not followed by compliance with logistical transport providers, many logistical transport service providers carry loads exceeding the load limits set by the government. Director General of Land Transportation of the Ministry of Transportation (Kemenhub), Budi Setiyadi, said the number of violators reached 81.07%. The figure was recorded during the 14-day supervision period of July 8-22 2019 in 21 Implementing Vehicle Weighing Unit (UPPKB) or weighbridge.
PT. Jasa Marga TBK said that it suffered a loss of around 1.5 trillion Rupiah as a result of vehicles carrying overloads and over-dimensions. These losses include road repair costs, consisting of 40% routine repairs and 60% road reconstruction. Other effects of overloading include reduced levels of driving safety, congestion and faster damage to vehicle parts. Basically the road will experience a decrease in structural quality in accordance with the VOLUME 20 │ NUMBER 01 │ JULY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 increase in the life of the road, especially if it is passed by vehicles exceeding the provisions, with the number of vehicles overloading very influential in reducing the age of pavement services (Ojha, 2018).
Likewise, the Tangerang-Merak Toll Road, which is the only toll road that connects the Jabodetabek area with the Merak Port, is inseparable from the violation of the vehicle's cargo. Therefore PT. Marga Mandala Sakti as the manager of the Tangerang-Merak Toll Road placed Weight In Motion (WIM) tools on some of their toll gates, the function of Weight In Motion (WIM) is to measure the load of vehicles that will enter the Tangerang-Merak Toll Road section. Road pavement damage that occurs is a combination of several interrelated factors. By considering the current conditions, the author wants to conduct research under the title "ANALYSIS OF THE EFFECTS OF OVERLOADING ON THE AGE OF THE TOLL ROAD CASE STUDY TANGERANG-MERAK KM 72 S/D KM 77"

RESEARCH METHODOLOGY
The method of data analysis in this study refers to the AASHTO Method by calculating the reduction in the percentage of age in each year so that a comparison between plans and actual conditions is found.  The order of analysis as follows: 1. Single Axle Load At this stage the primary data in the form of traffic data is converted to an equivalent number using the standard source load equation.

Vehicle Damage Factor
At this stage, single axle load become vehicle damage factor by adding up all the single axle load numbers of each vehicle.

Equivalent Single Axle Load
Then the number of vehicle damage factor is entered ESAL equation, so that it can be ESAL for the year.

Look for Influence Overload
At this stage, the ESAL obtained is compared with the ESAL of the planned load, so that the effect of the overload on the life of the plan is found.

Conclusion
At this stage the authors provide conclusions from the results of the analysis carried out so that conclusions are found, then the authors also provide the necessary advice.

Research Site
The research site reviewed was the Tangerang toll road section to Merak. Precisely on the Section of the Road between the West Serang Toll Gate to the East Serang Toll Gate.

Source: google.com, 2019
At this toll gate, the Weight In Motoin (WIM) engine was located, which used as a tool to measure the vehicle load that will be used to search for ESALs from every vehicle that passes.

Data
Supporting data in this final project is the Average Daily Cross (LHR) data and the Load data of each vehicle taken from the Weight In Motion (WIM) equipment located at the Serang Barat Toll Gate. VOLUME 20 │ NUMBER 01 │ JULY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860

Average Daily Trafic
The results of the average daily traffic of Serang Timur to Serang Barat toll gates, can be seen in the

a. Remaining Life Normal Load
The results of the cumulative ESAL that have been obtained then will be changed in the form of a percentage that shows a reduction in the remaining life of the road, for a decrease in the percentage of planned life can be seen in the After knowing the decrease in the plan, both normal and overload, we can find out the difference between overload and not, we can present it in graphical form, the graph will show VOLUME 20 │ NUMBER 01 │ JULY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 the difference. Firstly we look how much the increase that occurs each year, to find a graph of ESAL increase in both normal and overloads, can be seen in the graph below: Figure 2.

ESAL Cumulative Graph of Normal and Overload
Source: Data in research, 2020 To find out how far the decline in plan life, we can use a decrease graph, so we can know the difference and how far the changes that occur are caused by overloading, to find out can be seen in the graph below: Year Line

Comparasion Between Overload and Normal
Normal Overloaad VOLUME 20 │ NUMBER 01 │ JULY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: b. Based on the cumulative ESAL that was originally planned to receive a cumulative ESAL value of 202.602,172 in the 20th year, with the existence of overloaded vehicles the value can be achieved in the 15th year of the road life, the planned age has decreased the design life of the plan by 4 years 9 months that is, if it is used as a percentage, the overload that occurs on the Tangerang-Merak Toll Road KM 72 to KM 77 has decreased by 24%.