Author Topic: Philippine National Railway (PNR) track gauge  (Read 2422 times)

adroth

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Philippine National Railway (PNR) track gauge
« on: September 30, 2018, 10:26:02 PM »
Even the most modern military forces in the world still use rail to move its equipment. For that reason, military considerations in the expansion of the Philippine rail system remain important.

The following drone footage of the a US military convoy leaving military exercises in San Luis Obispo in March 2018 illustrates the logistical advantage that railroads provide even in the 21st century.

https://www.youtube.com/watch?v=PT1lYx1sZys

This is a logistical capability that the must be able to tap.



The Philippine National Railways doesn't have a common gauge for all its railway lines. This thread seeks to stimulate discussion about the military implications of this lack of commonality.

Before this thread delves into this issue, it is best for all readers, and participants, in this discussion to arrive at a common understanding.

What is a "rail gauge"?

From: http://www.railsystem.net/rail-gauges/



Different gauges are given different names.

As shown by the excerpt from the Project Information Memorandum of the "North-South Railway Project - South Line" of the Philippine National Railway and Department of Transportation, the 1,067mm (3' 6") gauge is referred to as "narrow", whereas the reference above calls it "meter gauge".

Gauges in use in the Philippines:

1,435mm gauge
1,067mm (3' 6") gauge
« Last Edit: October 02, 2018, 06:24:13 AM by adroth »

adroth

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Rail: 1,067mm (3' 6") gauge
« Reply #1 on: September 30, 2018, 10:57:13 PM »
Japan uses the same gauge as the existing PNR Bicol express for its own railways, which it calls the "Kyoki" (狭軌) gauge. This format was first used in South Africa in the Cape Colony, which also lent itself to yet another name: "Cape gauge". (Ref)

It's worth noting that Japanese reportedly initially opted for the Kyoki / Cape gauge as a cost saving measure. By the 1920s, military considerations also reinforced the use of this gauge is it would reportedly make it more difficult for invaders to use Japanese tracks as these were narrower than those used in -- for example -- the United States which was viewed as a threat during that period.

In the 60s, Japan eventually started switching over to the much wider 1,372 mm gauge for high-speed rail applications.

=====


From the Project Information Memorandum of the "North-South Railway Project - South Line"

From: https://ppp.gov.ph/wp-content/uploads/2015/08/NSRP_PIM_FINAL.pdf

< Edited >

IV. NSRP South Line - Long Haul Line

The NSRP South Line Long Haul Railway (“Long Haul Line”) will operate along the same tracks as the Commuter Line and go on to follow the existing PNR Line from Calamba to Legazpi City in the Bicol Region. The Long Haul Line will be expanded by the Long Haul Line Extension (i.e., an extension line of 117km from Legazpi to Matnog)and the Long Haul Line Branch (i.e., a branch line of 58km from Calamba to Batangas (i.e., the Long Haul Line Expansion).

The PNR line to Legazpi City runs a total of 478 km from Manila, including the 56km segment used for the Commuter Line to Calamba. From Calamba to Legazpi, the line is single-tracked and, similar to the Commuter Line, is narrow gauge (1,067 mm).Overall, the condition of the existing PNR line from Calamba to Legazpi is in fair condition largely on account of good construction, relatively light axle loads and very little accumulated traffic. Most rail defects and damage is due to poor maintenance of joints. Bridges are in widely varying states largely due to lack of maintenance, old
age and inadequate protection from natural elements.

There are 397 observed road crossings between Alabang and Legazpi. Of these, 214 are authorized and 183 are unauthorized. Only 31 of the authorized crossings are officially manned by PNR and none of the unauthorized is manned. Unauthorized crossings are ones that have been established without the formal consent of PNR and are often in areas of high encroachment.

As of January 2014, only the existing PNR line between Naga and Sipocot in the Bicol region (35 km) remains operational. This transports approximately 1,300 passengers per day with an average load factor of 50% for the year 2014. The objective of the rehabilitation of the Long Haul Line is to restore existing track structure, including rehabilitation of bridges, to safely accommodate the required rail operations.

< Edited >

« Last Edit: October 02, 2018, 06:06:52 AM by adroth »

adroth

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Rail: 1435 mm (4 ft 8 1⁄2 in) gauge
« Reply #2 on: October 02, 2018, 06:10:28 AM »
The Manila Light Rail Transport System in Metro Manila use the 1,435 mm (4 ft 8 1⁄2 in) gauge

MRT3

http://www.dotcmrt3.gov.ph/about#tracks-and-guideways

- Mainline double tracks about 16.9 km consisting of elevated plinth tracks, at grade ballasted track and bridge track
- Switches and crossing: 26 units on the mainline, 2 units at the access line, 48 units at the depot
- Maximum gradient is 5%
- Rail track gauge 1435 mm
- Rail wt is 54 kg/M
- Rail fastenings by PANDROL
- 9km elevated tracks
- 7km at grade tracks
- 0.9km underground tracks
- Typical spanning elevated guideway: 3 at 30.00 meters; 3 at 27.00 meters
- Type of girder for elevated guideway AASHTO GIRDER 1-135 M span steel Bridge at Guadalupe
- Width of guideway: w/OCS mast-9.0; w/o OCS = 8.30 M
- Guideway tracks: slab track & ballasted tracks
- For seismic design ground acceleration (Ag) = 0.5 the same with station bldg. foundation is bored pile

From: https://www.flickr.com/photos/93327846@N07/14884961090

Diego Roxas Follow
Manila Metro Rail Transit 3 (MRT3) Car 024 at Ortigas Station

« Last Edit: October 02, 2018, 06:15:57 AM by adroth »

adroth

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Re: Philippine National Railway (PNR) track gauge
« Reply #3 on: October 08, 2018, 03:27:38 AM »
The Malolos-Tutuban Commuter Railway Project uses the same gauge as MRT

https://www.pnr.gov.ph/about-contact-us/bids-awards/north-south-commuter-railway


adroth

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Re: Philippine National Railway (PNR) track gauge
« Reply #4 on: January 10, 2020, 03:29:14 AM »
The Bicol Long-Haul line will use the standard gauge as well.

https://www.facebook.com/groups/120989042040/permalink/10156386096132041/

TODAY
18 December 2019

PNR will make another chapter in its history as it signs the contract for the procurement of trains standard gauge Diesel Multiple Unit with CRRC Zhuzhou Locomotive Co. Ltd. It is another first for PNR to procure the long haul trains from the Government coffer.

PNR has always been known for its long haul service the Penafrancia Express and the Bicol Express but it uses the donated passenger coaches from Japan to serve Manila to Legazpi service. It used to cover 479 kilometers service from Manila to Bicol. The last operation was in 2014. It stopped operation because of right of way challenges, and lack of trains.

The new train sets will also be used for the long haul service from Calamba to Naga initially and eventually to Legazpi City in Region 5. The project consist of 3 train sets of 3 car formation and which was bidded out publicly on 23 October 2019. The contract duration is 22 months from notice to proceed. The contract price is Php 921,000,000. The train will be in standard gauge or 1435mm with maximum speed of 120 km/h. There would be 3 types of accommodation, business class, first class and second class accommodations. It has 36 seats for business class, 52 seats for first class and 80 seats for second class for a total of 168 passenger seat capacity.

The contract signing today is part of the transformation strategy of PNR through increasing its coverage, capacity and reliability. It is also part of the transformation from narrow gauge to standard gauge.

The event will be participated by the DOTR Secretary Arthur Tugade, DOTR Officials, PNR Board, PNR Management Team and Officials of CRRC ZELC. The event will be done at Pandanggo Hall of Manila Hotel.