REVISED PROFORMA FOR MEASUREMENT OF POINT & CROSSING By : R. K. Singh, ADEN/DHG, WR A. K. Mishra, AXEN/C/LMG, NFR H. Majumdar, AXEN/C/DMKR, ER Course No : 10109

Special thanks to : Sri N. R. kale, AXEN-I GUIDE : Mr. Manoj Arora, (Sr. Prof. Track-I) Special thanks to : Sri N. R. kale, AXEN-I

Why revision is required? As per existing proforma, time required for inspection is minimum one hour, hence it is very difficult to complete the schedules. Much more emphasis to be given on evaluation of data rather than noting down mechanical measurements. Many items in existing proforma are not relevant.

Why revision is required? Some of the items of existing proforma are very difficult to measure at site (Example: Ballast cushion, tongue rail wear, Exact Gauge and cross levels in switch portion etc.) In existing proforma, Turn in curve is not covered properly which is derailment prone.

Advantages after revision Total items have been reduced from 112 to 78 which will reduce the inspection time from one hour to 40 minutes. Safety is ensured by the items kept in revised proforma. All the items are feasible and easy to be measured at site.

Advantages after revision Correct evaluation after measurement can be done and the factors responsible for bad track geometry can be ascertained. This will help in completing the schedule of inspection by field engineers with a greater degree of seriousness.

Items proposed to be deleted from existing proforma Item No. Description Reason 3. Availability of: a) Ballast in shoulders and cribs. b) Clean ballast cushion It is already covered in Item No-2 & it is not feasible to measure clean ballast cushion during inspection.

Contd…. 4.(d & e) Vertical & lateral wear of T-Rail at 13 mm Head width and at the same level point with the stock rail. Before it crosses the limit of vertical & lateral wear at these locations, it will already show the symptoms at toe within one meter (knife edge/chipped).

Contd… 7. c. Gauge at 150 mm behind ATS. As per design of profiling of Tongue Rail, at this location, top of the T-Rail is more than 13mm below the top of stock rail. Hence this can not be measured theoretically.

Contd…. 12 (b) Versines of Curved tongue Rail Versine of curved T-Rail can not be taken correctly if T-Rail is not housed properly up to the JOH as practically experienced in different yards. 17. Distance between gauge faces of stock rails at JOH: This is already included vide S. No. 7 (e) of old proforma.

Clean ballast cushion in turn in curve. Contd… 18. Distance between web to web of tongue rails at respective stretcher bar locations: It is relevant at the time of laying of new point. Afterwards it will not change hence not required to be measured in every inspection. 30. (ii) Clean ballast cushion in turn in curve. It is not practically possible to measure clean ballast cushion during inspection.

Items proposed to be modified of existing proforma Item No. Description Modification 5. Condition of Stock rail- Vertical & lateral wear (as per Annx. 2/6/1) V. wear is recommended to be measured at only location where TR & SR are at same level Lateral wear at 450 mm ahead of ATS. 24. Clearance of wing Rail opp. Nose of crossing. Not to be measured for CMS crossing because it is casted no variation possible.

Contd… 28. Turn in curve Measurement of Gauge and X-Lvl. In addition to versine. 31. Any other Special defects/feature “Missing & defective Rubber pad, liner, ERC, loose bolts, other fittings etc.” to be written specifically.

PROFORMA FOR INSPECTION OF POINTS AND CROSSINGS Station _______________________Point No. __________________________ Location ______________________________Type of rail ________________ Date of laying sleeper_____________________________________________ Date of laying reconditioned crossing : _________________________________ 1st 2nd 3rd 4th Date of laying reconditioned switch : LH : 1st 2nd 3rd 4th RH: 1st 2nd 3rd 4th Type of sleeper/assembly __________________________________________ Angle of crossing _______________ Nominal gauge of turnout ____________ Left hand or right hand __________ Laid on straight or on curve of radius ___________________ Similar/contrary flexure _____________________________________________

General – 1. Condition of sleepers: Condition of ballast and drainage II. Switch assembly and lead portion Condition of tongue rails: a) Whether chipped or cracked over 200 mm length within 1000 mm from ATS. LH: RH: b) Whether knife edge

5. Condition of stock rail. a) Right hand : i) Vertical wear (At point where tongue rail and stock rail level is same ) : ii) Lateral wear (450 mm ahead of ATS) : (to be measured at 13 mm to 15mm below of stock rail) (as per Annexure 2/6/1) 6. Condition of fittings of switches :

a) At 450mm ahead of toe of switch. 7. Gauge a) At 450mm ahead of toe of switch. b) At ATS between the two stock rails: c) At heel of switch. i) For straight road: ii) For turnout: d) Gauge and X-L of tongue rail to be measured at i) At point with 13 mm head width : ii) At point where TR & SR are at same level : iii) At JOH

e) At 3m interval in lead portion Stn Set for Main line Turnout G XL 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11. 12.

8. Divergence at heel block a) Right hand b) Left hand 9. Throw of switch Creep at toe of switch 11. Packing conditions under the switch assembly under traffic.

12. Versines of curved Stock rail up to end of lead curve (see notes below): Station Versines in mm 0. (Heel/ATS) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11. 12 Note: Versines to be recorded at 3 m interval on 6m chord length commencing from heel of switch for straight switch & from ATS for curved switches.

13. Housing of stock and tongue rails : LH: RH: 14. Seating of tongue rails on slide chairs : 15. Straightness of straight stock rail : (measured on 10m chord) 16. Straightness of straight tongue rail : (measured on 10m chord)

17. Gap between top edge of stretcher bar and bottom of rail foot at : a) Leading stretcher bar b) Ist following stretcher bar 18. Clearance at JOH: i) When set for main line a) On Open tongue rail side b) On Closed tongue rail side ii) When set for turnout side Note: To be recorded only if spring setting device has been provided at or near JOH.

19. Condition of crossing III. Crossing Assembly 20. Type of crossing a) Sign of propagation of crack (if any) in crossing assembly: b) Burring on top surface at nose: 20. Type of crossing 21. Wear of crossing A. Built-up/Heat-treated welded crossing (wear to be measured with straight edge at 100 mm from ANC): i) On left wing rail: ii) On nose: iii) On right wing rail

(wear to be measured with straight edge): B. CMS crossing (wear to be measured with straight edge): i) On left wing rail (Opposite ANC): ii) On right wing rail (Opposite ANC): iii) On nose (At 100mm from ANC): (Actual wear for 52 kg section= Measured wear-2.0 mm) (Actual wear for 60 kg section= Measured wear-2.5 mm) C. Heat-treated welded crossing i) Weld texture on top surface: ii) Whether any flow of metal is there in weld portion: iii) Any indication of separation of weld metal from parent metal.

22.Clearance of wing rail opposite nose of crossing and upto 450 mm towards heel end. a) Right b) Left 23. Gauge and cross level at crossings: a) 1m ahead of ANC i) On straight road ii) On turnout b) 150 mm behind ANC c) 1m behind ANC

25. Clearance of check rails: a) Opposite ANC: Left: 24. Condition of check rail fitting eg. Bearing plates, keys, blocks, bolts and elastic fastenings: 25. Clearance of check rails: a) Opposite ANC: Left: Right: b) At 500mm towards toe of crossing and 500mm behind heel of crossing: with respect to centre of check rails. c) At the flared end towards heel and towards toe of crossing:

IV Turn in curve: 26. Gauge, Versine and cross level to be measured at 3m interval from heel of crossing to end of turn in curve. (Versine to be measured on 6m chord) Stn. Versine Gauge XL 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

28. Any other special features/defects. 27. Ballast: Availability of 150 mm additional ballast shoulder width on out side of turn in curve. V. General 28. Any other special features/defects. (Missing & defective Rubber pad, liner, ERC etc.) 29. Signature of the inspecting offical with date NOTE : (1) Necessary additional entries may be made against relevant columns of switch, crossing and lead assemblies in case of diamond crossing, diamond single slip/double slips. (2) Locations where the gauge and cross levels are to be checked should be painted on the web of the rail.

THANK-YOU