Patiala State Monorail Trainways
Patiala State Monorail Trainways was a unique rail-guided, partially road-borne railway system running in Patiala from 1907 to 1927. PSMT was the second monorail system in India, after the Kundala Valley Railway, near Munnar in Kerala, and the only operational locomotive-hauled railway system built using the Ewing System in the world. The Kundala Valley Railway pre-dated this, also using the Ewing system between 1902 and 1908, although this only used bullocks for haulage. Following the conversion of the Kundala Valley Railway from a monorail to a narrow gauge railway in 1908, PSMT was the only monorail system in India until its closure in 1927. These were the only instances of a monorail train system in India, until the Mumbai Monorail was opened on 2 February 2014.
A locomotive and a coach of PSMT have been restored, are in running condition and are exhibited in the Indian National Rail Museum, New Delhi.
History of PSMT
Maharaja Sir Bhupinder Singh of Patiala got this unique railway system constructed to facilitate movement of people and goods in his state. The chief engineer of this project was Colonel C. W. Bowles. Colonel Bowles has earlier successfully used monorail based on Ewing System during his stint as engineer during laying of tracks for Bengal Nagpur Railway for transportation of construction materials. Maharaja Sir Bhupinder Singh made him chief Engineer for the PSMT project. One of the objects of PSMT was to make use of the 560 mules being maintained by Patiala State. Apart from mules, bullocks were also used to haul the monorail before introduction of steam locomotives on the route of PSMT.A 1908 edition of Imperial Gazetteer of India described the PSMT as "a mono-rail tramway, opened in February, 1907, connects Basi with the railway at Sirhind". An ordnance map of 1913 also shows a tramway running along the west side of the road, but does not mention the PSMT by name. Apart from the above, PSMT has not been mentioned in any official documents of that period in India.
Advantage of using Ewing System
The railways based on the Ewing System are basically monorails using a balancing wheel for balancing the train. The main load is borne by the single rail while the rest is borne by the balancing wheel which runs on the ground. Further, in normal train systems, the rails have to be at almost exact level of other rail, failing which the train may go off the tracks. By using Ewing system, this problem is solved as the balancing wheel does not need exact level to maintain the balance of monorail. In addition the cost of laying tracks also goes down considerably since only one rail is used. Another benefit of using Ewing System was that the balancing wheel could run on existing tarred roads as well as the macadam roads thus further reducing cost to lay down tracks.Using one rail also means that the turning circle is far less than the standard trains. PSMT had to pass through some very congested areas. Since the space need to lay the tracks was less and balancing wheel could run on existing roads, PSMT succeeded in running through the congested urban areas of Patiala. The balancing wheel of PSMT ran on the roads and did not interfere with normal traffic.
PSMT could have been forerunner of mass transit system in urban areas in India. Its model still holds good for introducing mass transit system in congested urban areas where laying of train or tram tracks is not possible due to space constraint.
Routes of PSMT
The total distance covered by PSMT was. PSMT was run on two unconnected lines. One ran from Sirhind to Morinda. It was proposed to extend this line to Ropar but since Ropar was connected by a railway line, this idea was abandoned.The other line ran from Patiala to Sunam. The lines were constructed by the firm of Marsland and Price. Today no trace of the tracks or any infrastructure of PSMT remains. However, information about the route was found in a letter by Colonel Bowles to Mr. Ambler. Colonel Bowles described the route of Patiala-Sunam line as starting from goods yard of North Western Railway at Patiala. The PSMT then crossed the main railway line at a road level crossing nearby. It then went through walled city towards City Mandi and then took a turn north towards cantonment. Then it traveled along the main road to Bhawanigarh and then Sunam.
The steam locomotive was probably used only on Patiala Sunam Line. In his letter to H. R. Ambler, Col. Bowles wrote that the locomotives were heavy for 18 lb/yd rail, thus they were not used on Sirhind – Morinda line. Col. Bowles categorically stated that the steam locomotive did run between Patiala Station and City Mandi i.e. a distance of about a mile. Heavier rails of almost same length was found stored in PSMT Yard along with other dismantled equipments. Thus in all probabilities, the steam locomotive was used in hauling carriage only between Patiala Station and City Mandi.
Freight and passenger
The route of the PSMT passed through one of the major agricultural areas of Punjab; the area around Patiala was known as the “wheat basket”. The old photographs of the PSMT show it carrying sacks of grain as well as people. Thus, the PSMT was used for both purposes.Steam locomotives
PSMT initially used mules to pull the train. Later four steam locomotives were acquired for pulling the coaches. These four locomotives were of 0-3-0 configuration and was built by Orenstein & Koppel of Berlin in 1907 at cost of £500 to £600 each. Donald W. Dickens, in his article on the PSMT, described the locomotives as “These were an adaptation of the normal O&K 0-6-0's but had a double flanged driver in the centre of each axle rather than drivers at each end. The right-hand water tank was larger so that some of the weight shifted onto the diameter balance wheel which was attached beyond the enlarged water tank. The outside cylinders were 5½" × 14".The designer at O&K took advantage of the extra cab space behind the enlarged right-hand water tank and put the fire door on the right side of the fire box rather than at the back as is usually done. These locos were confined to the Patiala – Sunam line.”The wheel arrangement of the locomotives were 0-3-0. The middle flange less wheel was of diameter. Other two wheels were double flanged having groove depth of . The locomotive had wheelbase of.
Rolling stock
- Wagons were normally 8 feet long by 6 feet wide, with two diameter rail wheels. The coaches were supported by a road wheel of 98 cm diameter, set at from the rail.
- The passenger coaches on the Sirhind Line were open-sided wagons with knifeboard seating.
- In 1908 there was a total of 75 goods wagons and 15 passenger coaches.
- According to Col. Bowles, there were a few long goods wagons, having two road wheels. Some of these wagons were also converted for use as passenger coaches by having transverse benches fitted in them.
Details about PSMT track
The track of PSMT was constructed by firm named Marsland and Price, who were based in Bombay. The track was 18 pound per yard rail clipped to iron sleepers 10 in by 8 in by ½ in.On the Patiala – Sunam line, wooden sleepers 15 by 3 by 4 inches were initially used but were later replaced with iron sleepers due to termite infestation.
Passengers, fares and cargo
The only account of operational details of PSMT is found in papers of Colonel Bowles. According to a memorandum dated 2 October 1908, found amongst Colonel Bowles papers, PSMT carried 20,000 passengers in a month on Sirhand – Morinda line. There are no details of the quantity of goods carried.The fare is stated to be 1½ annas for the entire route. The rate for carrying goods is mentioned to be 1 anna per maund.
There is no account available for fares or number of passenger or quantity of goods carried on Patiala – Sunam line.