Mass Rapid Transit Operation and Maintenance Cost Calculation Model

Mass rapid transit (MRT) is an efficient transportation mode that is urgently needed by a growing city such as Jakarta, Indonesia. However, limited research has attempted to evaluate the system’s current performance through a comprehensive, unit-based calculation of the costs of MRT operation and maintenance. )is research aimed to develop a system for calculating and comparing MRToperation and maintenance costs per kilometer per year. )e cost model has three components, namely, capital, operation cost, and maintenance cost, which are, respectively, calculated based on their percentage toward total cost. )e cost model calculation determined that Jakarta MRToperation and maintenance costs total USD 8.44 million per kilometer per year. )is result was compared to other countries’ MRT operations.


Introduction
Jakarta, the capital of the Republic of Indonesia, is the largest metropolitan area in Southeast Asia [1], and as Indonesia's largest economic center, its population increases from 10 million to 12 million people during working days as people commute into the city proper for work, school, and other activities [2]. Jakarta is currently faced with severe transportation problems: road ratios are less than seven percent; there are growing rates of vehicle ownership and poor public transport facilities; and more than 90 percent of available modes of transportation are road based [2].
One strategy used to address such challenges is an MRT network, which carries passengers faster and safer than other rail systems, while simultaneously reducing environmental pollution from road vehicles [3]. MRTs can be linked with other modes of mass transport (buses and trains) to comprehensively serve metropolitan area commuters using an integrated smartcard ticketing system [4]. erefore, railbased public transport has become a critical element of urban infrastructures and accordingly has become a focus of increasing attention in research and practice as a solution for social problems accruing from urbanization, traffic congestion, and safety, as well as global warming by CO 2 emissions in both developed and developing countries [5].
In recent years, urban railway construction in Indonesia has increased rapidly, particularly in Jakarta [6]. Groundbreaking for the city's MRT began in 2013; the city is currently constructing a north-south line that will link Kampung Bandan (in North Jakarta) to Lebak Bulus (South Jakarta); and an east-west line is targeted for completion from 2024 to 2027 [7]. However, the construction of an MRT requires a very great investment along with large annual operating and maintenance costs [8], which have become a huge burden on government spending. Since MRTs are public welfare facilities, they bring revenue from passenger ticket sales, nonbusiness rail, and government subsidies. Nonetheless, MRTs in cities worldwide rely on government subsidies and supports to maintain operations [9]. erefore, how to control operating costs has become an important topic of investigation in transportation studies [10]. e objective of this study is to develop a calculation of MRT operation and maintenance (OM) costs per kilometer, which will first be used to determine the overall annual costs of the Jakarta MRT and then applied to calculate transit system costs in Bangkok and Delhi for comparative purposes. Comparing Jakarta's MRT operation and maintenance costs with those of other systems can aid in determining the reasonability of spending or reducing wasteful expenditures, as well as providing a basis for researchers and analysts in other urban areas to develop similar models for investigating methods to evaluate and control transport costs. Another benefit of this research is to calculate ticket prices by considering cost recovery along with government subsidies and willingness to pay from passengers.

Literature
Review. An MRT is an urban rail-based mode of transportation that provides a regular and sustainable public service. erefore, it is essential for the efficient functioning and quality of life in big cities [8]. MRT systems have the highest performance of capacity, speed, and reliability among all other transportation modes, and it has its own path that is completely separated from other modes of transport [11]. An effective MRT system has the ability to influence the shape of the city and contribute to the growth of an area [12].
Researchers have mainly concluded that MRT operating costs encompass the broad categories of main business costs, business taxes and surcharges, sales charges, management fees, and depreciation [9,[13][14][15]. e main business costs include wages, welfare, the cost of electricity, and vehicle repairs. In addition, in particular circumstances, track and access charges are also considered as elements of operating costs [16,17].
Like other forms of rail transport, fares are charged to passengers of the Jakarta MRT in accordance with Article 146 of Republik Indonesia Regulation No. 72/2009 on traffic and rail, which published its technical implementation of fare determination on Minister of Transportation Regulation No. 69/2014. Under the regulation, four cost components can be classified as part of MRT operation and maintenance costs: (a) capital costs, including the depreciation of fixed assets railway facilities and capital and lease interest; (b) operating costs, comprising "direct fixed costs" (infrastructure, insurance, and railway staff payment), "direct variable costs" (fuel, electricity, clean water, train cleaning, customer service, train security, daily wash facilities, fumigation, pest control, lubricant, and work allowance), "indirect fixed costs" (salaries and rail operation allowances for noncrew members, office expenses, corporate taxes, licenses and certifications, and passenger services at the stations), and "indirect variable costs" (marketing costs, research and development, and human resource development); (c) maintenance costs for trains, electric rails, hydraulic and electric locomotives, and generators; and (d) profits, which are an addition of 10 percent of the total principal costs for the sustainability of the company [18].

Methods
is research was completed in three stages, the first of which was the development of an MRT operation and maintenance cost model to identify the required data based on a detailed study of theoretical and empirical literature and related Indonesian government regulations. e second stage encompassed the data collection and processing using the predetermined model to obtain the total cost of operation and maintenance per kilometer. e final stage entailed the comparison of the operation and maintenance costs per kilometer per year with various operators.

Stage 1: MRT Operation and Maintenance Cost Model Development.
ere are several previous studies related to OM cost for MRT. e mapping of OM cost for MRT based on previous researches is shown in Table 1.
In this study, we use all the fourteen cost components from previous studies.
(1) Depreciation of railway assets: the imposition of charges upon the usage of assets during its economic lifespan [19]. (1) (3) Infrastructure costs: infrastructure costs which include the cost of track and station facility usage that consist of infrastructure depreciation cost and infrastructure maintenance cost: (4) Insurance costs: insurance costs for railway assets with the following formula: (5) Electricity costs: electrical substation and power flow over the network that serves to transmit electrical power from the source to electric train: year .
(4) (6) Train facilities cleaning cost: the cost of the trains to be cleaned daily: (7) Security costs: the cost of the security in the station and inside the train: (8) Employment cost: office employees salary: (9) Office expenses: depreciation costs of office building, office maintenance, office administrators, the cost of electricity, water, telephone, and so on: (10) Licenses and certificates: the confirmation given by a professional organization to a company that indicates the ability to perform a specific job or task: For the purposes of the MRT operation and maintenance cost model of this research, we group the fourteen cost components into three groups such as capital cost, operation cost, and maintenance cost as presented in Table 2.
Capital cost is calculated by depreciation of railway assets, since Jakarta MRT receives capital from government to purchase land and to build all the required infrastructure and facilities.
Operation costs comprise four subcomponents: direct fixed costs; direct variable costs; indirect fixed costs; and indirect variable costs. e "direct fixed costs" subcomponent is calculated based on railway staff costs, infrastructure costs, and insurance costs. e "direct variable costs" subcomponent is calculated based on electricity costs, train facilities cleaning costs, and security costs. e "indirect fixed cost" subcomponent is calculated based on employment cost, office expenses, license and certification costs, and passenger service in the station costs. e "indirect variable cost" subcomponent is calculated based on marketing and human resource development costs.
Maintenance cost component is the repair and maintenance cost of the electrical train.

Stage 2: MRT Operation and Maintenance Costs'
Calculation. Based on the MRT operation and maintenance cost model of this research, the calculation for Jakarta MRT case is as follows:

Stage 3: Comparison of the Jakarta MRT Operation and Maintenance Costs per Kilometer per Year with Other
Operators. In a final step, the results of the calculations were compared to the same calculations using data taken from the annual reports of other MRT operators. For a more detailed analysis and comparison, two operators from developing countries were selected with relatively similar country conditions to Indonesia (Jakarta MRT), namely, Bangkok MRT and Delhi Metro (shown in Table 3).

Results and Discussion
e details of the operation and maintenance cost calculation results for Jakarta's MRT can be seen in Table 4. Overall, the composition of the components is 67 percent capital cost, 18 percent operation cost (14 percent direct cost and 4 percent indirect cost), and 15 percent maintenance cost. Based on the calculation results, Jakarta's MRT operation and maintenance cost per year is USD 8.44 million per kilometer per year. e results of the OM Jakarta MRT calculation compared with two operators in developing countries compared to Indonesia are shown in Table 3. e data presented in Table 3 illustrate comparison of the operation and maintenance costs (OM costs) per kilometer per year of the Jakarta MRT with the Bangkok MRT and Delhi Metro using secondary data taken from each MRT operator's annual report (Bangkok MRT Annual Report 2016 and Delhi Metro Annual Report 2015). e comparison has several weaknesses, such as the expenditure details provided in the annual report which are different for each MRT operator and different conditions in each city, such as economy and policy.
Overall, the comparison shows that Jakarta MRT's OM cost is two times higher than Bangkok MRT and more than four times higher than Delhi Metro. is can be seen from the difference in the initial year of operation.
e Delhi Metro began operations in 2002 and the Bangkok MRT began in 2004, while the Jakarta MRT began in 2019. e second reason was that the Jakarta MRT cooperates with JICA. As a consequence, most of the assets, machinery, and rolling stock were purchased from Japanese companies whose prices were higher due to the quality of Japan's products.
e third reason is that the calculation of depreciation of railway assets for Jakarta MRT refers to government regulations in Indonesia for 30 years and might differ in Bangkok and Delhi.   systems; however, MRT operation and maintenance cost components need to be modeled based on regulations and conditions in the respective country and region to obtain valid calculations.

Future Research
e calculation results in this study could be compared with the actual condition of the Jakarta MRT. Another future research of this study is the ticket prices calculation by considering cost recovery ratio and profit for operators. e calculation of ticket prices could also consider willingness to pay from passengers so that government subsidies can be calculated.

Data Availability
e data used to support the findings of this study are available from the corresponding author upon request.

Conflicts of Interest
e authors declare that there are no conflicts of interest regarding the publication of this paper.