INDIAN RAILWAYS PERMANENT WAY MANUAL
1986 - (EDITION)

ADVANCE CORRECTION SLIP No. 65 Dated 01-03-2001
(Ref. Railway Board's letter No. NO.99/CE-II/TK/Misc. dated. 01.03.2001).

The existing para 309 of Indian Railways Permanent Way Manual be renumbered as 309 (B).

A new para 309(A) be added to read as under:

309 (A) Project report for track renewal works : Systematic and meticulous planning for various items of execution of track works is essential for achieving quality, economy and timely completion of works. For every sanctioned track work e.g. CTR, TSR, TRR, deep screening, bridge timber renewal, etc. a detailed project report should be prepared. The report should, inter alia, cover the following aspects:

Existing track structure - Inventory of existing track structure including the rails, sleepers, fittings, ballast quantity/deficiency in track, type, width of formation and other details should be taken as prescribed in P.Way diagram, details of level crossings, bridges, electrical fittings, curves, height of bank/cuttings, yards, sidings, etc.

Classification of track materials - During inventory of the existing track structure by foot by foot survey, identification, classification and colour marking of existing track materials as second hand and scrap would be done as provided in para 320 of the IRPWM. The classification should be approved by the competent authority. Action plan for stacking/storage and disposal of the released materials should be clearly indicated. Inventory of existing track material would normally be prepared jointly by the PWI of the section and the PWI(Spl) for the renewal.

Proposed track structure - The proposed P.Way diagram of the affected length should be prepared in the same format as done for the existing track structure and incorporated in the project report.

Existing/proposed gradient profile - The levels of existing track should be taken at every 20 metres and a gradient diagram prepared. Introduction of vertical curves should be critically examined and the proposed profile of track shown in red line indicating the proposed grades. Lowering of track should be avoided. Precise lift of track at girder bridges should be worked out and a separate scheme developed for lifting of girders on each of the affected bridges. Similarly, the magnitude of lifting at level crossing should be worked out and indicated in the report. Care should be exercised to keep the road surface in one level on level crossings spanning to across multiple tracks. This may require regrading of adjacent lines too.

Realignment of curves - All curves should be measured afresh and slews worked out for realignment wherever necessary, keeping in the obligatory points in view.

Method of execution -The work should be executed "bottom upwards" i.e. sequence of execution of works will be in the following order-

Repair and widening of cess: The project report should indicate the requirement of and plan for widening of formation in both banks and cuttings wherever necessary. Provision of proper drains in cuttings should also be planned.

Formation treatment: Areas needing formation rehabilitation should be identified and a study for possible solutions and method of execution of the rehabilitation scheme should form part of the project report.

Ballast - The requirement indicating bifurcation of cess supply and depot supply and the source and means of each should be spelt out clearly. Mode of providing ballast cushion i.e. deep screening or raising should be identified along with sketches of cross sections present and proposed. Sleeper renewal would normally not be started unless adequate arrangements for supply of ballast have been made.

Transportation of P.Way materials - The mode of transportation for various track components and unloading of rails and sleepers in particular, at the work sites should be indicated in the project report.

Welding - The complete details of welding requirements, the arrangements need to be made for its execution whether departmentally or through contract should be clearly indicated in the report.

Renewal of turnouts, bridge timbers, etc. - The project report should cover the complete details of turnouts, bridge timbers, level crossings, etc. where renewal is to be carried out. Whether turnouts are to be laid manually or by mechanized means, should be clearly brought out indicating the arrangements made. The report should also include the mode and agency for overhauling and relaying and making up of road surface at the level crossings.

Use of machines -The requirement of machines for renewal (if mechanized renewal is planned) deep screening (if mechanized deep screening is planned) and tamping/stabilizing and the duration for which the machines are required should be indicated. The machines that would be deployed should be identified and staff nominated. The planning for repair of machines at the works site, supply of fuel and other consumables should be planned. The requirement of additional lines in the existing yards for making base depot and arrangements made for the same should be indicated in the report

Contracts - The contracts that are required to be entered into for various activities of works and the activities, which are to be done departmentally, should be spelt out. The planning for deployment of staff/supervisors for execution at various activities should be indicated.

Material Planning - The material requirement should indicate the materials to be arranged by the headquarters and by the Divisions. Against each material, the proper nomenclature and drawing number should be indicated. Rails, nos. and sizes (including lead rails, check rails etc.), sleepers (including specials), rail and sleeper fastenings, switches and crossings, level crossing and bridge sleepers and fittings, etc. should be fully covered. The consignee particulars and the destination, the mode of transport should also be indicated.

Manpower Planning - The requirement of manpower including the officers, supervisors, artisan and other staff should be worked out with minute details. The arrangements made for camping of these officials and mobilization should be reflected in the report.

LWR/CWR plans - For welding of rails into LWR/CWR, the LWR plan should be got approved by the competent authority well in advance. Such plan should form part of the project reports.

Requirement of speed restrictions, traffic blocks and other material train - Planning for execution of track renewal works should be such that the time loss on account of speed restriction is minimal and is within the permissible limits. The report should indicate requirement of speed restrictions and traffic blocks together with durations. The corridor for blocks is required to be planned in consultation with the Operating Department and accordingly reflected in the report after obtaining the approval of DRM. Arrangements made for various types of wagons for transportation of ballast, sleepers, etc. together with requirement of locomotives should be indicated in the report in consultation with Sr.DOM and with the approval of DRM.

Monitoring mechanism - The list of all activities involved and the time estimation for each activity should be worked out. These activities should be sequenced and co-related in logical manner and network diagram prepared using CPM method. The critical activities should thus be identified. These should form part of the project report.

The detailed project report covering the various points as mentioned above should be prepared as soon as the approval of Board to include the works in FWP is conveyed to the railways. These reports should be submitted to headquarters for scrutiny and approval.

INDIAN RAILWAYS PERMANENT WAY MANUAL
1986 - (EDITION)

Advance Correction Slip No. 66 Dated 30.3.2001
(Ref. Railway Board's letter No.2000/CE-II/PRA/1 dated 30.03.2001)

A new Para 914 (b) (v) be added to chapter IX of IRPWM to read as under:-

Check rails of level crossings are required to be removed for tamping operation, overhauling of level crossings, destressing of LWR or track renewal etc. Check rails should be re-fixed as quickly as possible and preferably before leaving site. Should a situation arise where check rails cannot be re-fixed for any reason and trains have to be passed, a speed restriction of 30 kmph should be imposed besides ensuring that road traffic is diverted till the check rails are put in place.

ADVANCE CORRECTION SLIP No. 67 Dated 24.4.2001
(Ref. Railway Board's letter no. 98/CE-II/TK/Misc./3 dated 24.04.2001)

An annual machine deployment programme shall be drawn by zonal railway and be circulated to the divisions before the beginning of the year.

For spot attention/slack picking, multi purpose tampers and off-track tampers shall be used. Where off-track tampers are not available, as an interim measure, the packing may be done with the help of crow bar/beater duly taking care that the concrete sleepers are not damaged.

Pre-tamping, during tamping and post-tamping attentions should be given to track as indicated in para 226. (For further details, Chapter 3 of Indian Railways Track Machine Manual may be referred to).