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Proposal Defense

Lj Ala

on 17 February 2013

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Transcript of ECE11

Ala, Lea Janine Y.
Magbanua, Miriam C.
Manglo, John Cyrel T A Provision of an Automatic Railway Barrier of Philippine National Railways at the Level Crossing Area of Letran-Calamba In the Philippines, safety of the people and the environment in the operation of the railway system has not given much attention. The increasing number of accidents happening in every railway section of Philippine National Railway can attest to the poor and inefficient management of the agency. Thus, it is the desire of the researchers to develop the safety system of the railway near Letran-Calamba by installing a railway gate using an automated system to provide the needed protection of the people. Introduction Trains change the usual way of travelling from one place to another; they have many advantages over the usual transportation vehicles that people ride on. They facilitate the increasing number of passengers, relieving the already congested roads from additional vehicles, and reduce national dependence on high-priced oil imports. Philippine National Railways (PNR) Company Profile This office at Mayhaligue Street, Tondo, Manila is a government establishment under the Department of Transportation and Communications. It operates in the Manila Metropolitan and the provinces of Laguna, Quezon, Camerines Sur and Albay. Determine the feasibility of providing of an automatic railway safety barrier at the level crossing area near Colegio de San Juan de Letran-Calamba. General Problem Statement of the Problem What is the best railway safety barrier system to be used in developing the railroad near the vicinity of Letran-Calamba?

What parameters should be considered in making a railway barrier system to attain the reliability and efficiency of the system?

Is the railway barrier system economical and practical to design? Significance of the Study Philippine National Railway Office

The Colegio de San Juan de Letran Calamba

Professionals in the field of Electronics and Railways

Electronics Engineering Students

Researchers Objectives of the Study The general objective of the study was to design and develop an automatic railway barrier system for the Philippine National Railways at the level crossing area near Letran-Calamba. Design the best system to be used in developing the railway barrier for the railroad within the vicinity of Letran-Calamba;

Evaluate the parameters that should be considered in making this railway barrier system to attain the reliability and efficiency of the system;

Determine if the railway gate security system is economical and practical to implement. Scope
Limitation The study will cover the design and the possible device that can be used in the automatic railway gate security near Letran-Calamba.

This study will discuss the ability of a safety system to perform its intended safety function, under given environmental and operational condition for a stated period of time.

The study will evaluate the specific parameters to be considered in constructing the actuating item that will be activated. The study will not include the construction of the railway gate barrier.

Disassembling of the materials to be used by the public community is beyond the control of the researchers and this study.

The study excluded any malfunctions or derailment that may happen in the railway. Research Methodology Present
System Manually Operated Barrier Electrically Operated Barrier Schematic Flow Diagram Schematic Flow Diagram Alternative Solutions Using Through/Thru Beam Sensor Equipment Layout Focus of the Study development of the railway gate barrier system of PNR’s level crossing area near the Letran-Calamba for the safety of the public.

the conventional use of the wireless technology systems,

the minimization of the cost in terms of man power and other economic cost-benefit relations.

Equipment Cost Php 112,348.81
Installation Cost 16,833.33
Operational / Overhead Cost 9,000.00
Contingency Cost (CC) 13,818.21

Total Project Cost Php 152,000.35 Alternative Solution No. 1: Cost-Benefit Analysis Using Radio Frequency
Identification (RFID)

Equipment Cost Php 114,038.88
Installation Cost 16,833.33
Operational / Overhead Cost 9,000.00
Contingency Cost (CC) 13,987.22

Total Project Cost Php 153,859.43 Alternative Solution No. 2: Cost-Benefit Analysis Using Railway Proximity Sensor

Equipment Cost Php 534,013.49
Installation Cost 16,833.33
Operational / Overhead Cost 9,000.00
Contingency Cost (CC) 55,984.68

Total Project Cost Php 615,831.50 Alternative Solution No. 3: Cost-Benefit Analysis Recommendation of the Best Alternative Solution This includes the direct and indirect labor of the recommended solution for the automated railway gate security. It also includes the duties and responsibilities of qualified employees for the successful operation of the company.

The manpower of the proposed project includes the following:
Engineering Head
Field Engineer
Construction Workers Manpower Requirements of the Proposed Project Direct Labor
Field Engineer
Construction Workers
Indirect Labor
Engineering Head  
Direct and Indirect Labor Alternative Solution
No. 1 Alternative Solution
No. 2 Alternative Solution
No. 3 Economic Study Methods used: Rate of Return (ROR) Method
Annual Cost (AC) Method
Payback Period (PbP) Method Summary of prices of every passenger of Bicol Express and Mayon Limited Annual Income of
Mayon Limited Php 13,241,280 Annual Income of
Bicol Express Php. 24,294,400 TOTAL ANNUAL
INCOME OF PNR Php 37,535,680 Operational Cost of PNR Total Annual Diesel Consumption = Php 6,150,466.45 Total Labor Cost = Php 3,573,252 Electricity = Php 360,000 Water = Php 180,000 = Php 10,263,718.45 Comparison of the Three Alternatives Engineering Economy Assumptions 1. The average life of a thru beam in a +25 degrees Celsius is 12 years.

2. The average life of a Radio-Frequency Identification (RFID) is 10 years.

3. The average life of a railway proximity sensor is 12 years.

4. The average life of a Programmable Logic Circuit (PLC) is 12 years.

5. The average life of a dc motor is 3 years.

6. The average life of light - emitting diodes (LED) is 12 years.

8.Ten percent contingency fund was assumed.

9.There is no annual taxes used for this project

10.A Php 340,539.4283 per Diesel Multiple Unit (DMU) was assumed with 18 DMU per year (Once a year order of DMU)

11.Seventy-five percent of passengers were considered in every train (not fully occupied).

12.Twenty-four hours a day, seven days a week of operation.

13. An assumption of 100% income of Bicol Express and Mayon Limited was considered. Study Period 12 YEARS Minimum Alternative Rate of Return 50 % MARR Comparing of Alternatives Operational Flow of RFID System Schematic Flow of Alternative no.2 System Design 7.Fifty percent Minimum Alternative Rate of Return (MARR) was considered. SUMMARY - Philippine National Railways

- Present railway barrier system of PNR consists of manually and electrically operated railway barrier system

- The three alternatives presented were :Using Thru beam sensor, RFID and Railway Proximity Sensor

-Among the three alternatives' technical design, Alternative no.2 was chosen.

- The study period used is 12 years which is the least common multiple of useful life of the equipment used for the the three alternatives.

-The methods used are: by Rate of Return (ROR) Method, BY Annual Cost (AC) Method and Payback Period (PbP) Method. CONCLUSIONS -Alternative no.1 is the most economical among the three alternatives having an investment of Php 142,100.35. It has a rate of return of 11,021.88% with a payback period of about 3 days and 6 hours. This means that after the first 3 days and 6 hours of the train operation, the net income up to the end of its useful life, which is 12 years, will be the revenue of the company.

-Alternative no.2 which is Automatic Railway Barrier using Radio Frequency Identification (RFID) is the best alternative among the three alternatives. It may not be the most economical alternative, with an investment of Php 143,959.43, ROR of 10, 877.77% and PbP of about 3 days and 7 hours, but the researchers see this as an opportunity to be used as the device to be used in the automatic railway barrier system. By using RFID in the automatic railway barrier system, it may only encounter less problems compared to the other two alternatives which may result in preventing some failures in the system. RECOMMENDATIONS 1.PNR should implement the recommended best which is Alternative no. 2. This alternative may only encounter few problems compared to the other alternatives.
2.If PNR wants to use the most economical alternative suggested by the researchers, they should consider Alternative no.1 as the solution to the problem.
3.The implementation of this study should not only cover the level crossing area near Letran-Calamba but must also consider other level crossing areas of PNR.
4.Further studies should also be conducted as there can be other alternative ways aside from the alternatives discussed in this study, like better sensors or technology devices or equipment available which are also cheaper. Thank You
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