Open the official PDF on indianrailways.gov.in
| Type | Commercial Circular |
|---|---|
| Topic | reservation |
| Official PDF | indianrailways.gov.in |
structures should be built :- (a) In the case of metre gauge bridge to suit broad gauge loading, or (b) In the case of broad gauge single line bridge to allow for future doubling The minimum sleeper density shall be M + 7 in sections having traffic density above 10 GMT and M + 4 in sections having traffic
Appendix CHAPTER II MODES OF INVESTIGATION OF RAILWAY PROJECTS 201 Project Development Process 202 Feasibility Studies 203 Techno Economic Survey 204 Classification of Surveys 205 Decision to undertake Survey 206 Preliminary Investigation 209 Terms of Reference 210 Categories of lines 214 scope of Survey Operations 215 alignment 216 Position of Curves 217 Degree of Curvature 218 Transition Curves 220 Gradients 221 Vertical Curves 222 Alternative alignments 223 Plane Table Survey 224 RiversImportant Rivers 7/15/24, 11:15 AM CHAPTER II https://indianrailways.gov.in/railwayboard/uploads/codesmanual/EngCode/chapter-ii.htm 1/18 226 High Flood Levels 227 Diversion of rivers 228 Protection Works 229 Construction of new railway bridges 230 Provision of traction over head equipment structures on new bridges 231 Station Sites 233 Junction Arrangements 234 Survey for the provision of additional lines 237 Gauge Conversion Surveys 243 Railway Electrification Surveys 249 Field Books 250 Notes to be made in the field 251 The Operations of a Reconnaissance Survey 253 General Instructions Notification in Local Gazette 254 Damage to property and Trespass 255 Compensation for damage 256 Religious edifices etc. 257 Interference with pre-existing Railways, Roads, Canals etc 259 Military Requirements 267 Quarterly Progress Report 268 Feasibility Studies 201. Project Development Process. The Project Development Process consists of the following sequences : (i) Assessment of future needs/requirements; (ii) Project formulation, which is to determine the various options to meet the demand; 7/15/24, 11:15 AM CHAPTER II https://indianrailways.gov.in/railwayboard/uploads/codesmanual/EngCode/chapter-ii.htm 2/18 (iii) Project investigation which is to examine some selected alternatives as defined in the terms of reference to the Project Investigator and preparation of Techno Economic Survey Reports (cf. Para 203) or Feasibility Reports (cf. Para 202) as the case may be; (iv) Project evaluation which may involve economic analysis, (cf. Para 235-F) or Social Profitability Analysis, in addition to financial appraisal; (v) Selection of a scheme based on such an appraisal; & (vi) Further detailed examination of the selected scheme by conducting a Preliminary survey (cf. Para 204) wherever necessary for accurate costing and preparation of projects reports (cf. Para 502) and investment decisions. 202. Project formulation is an essential part of the planning process and the Project Investigator must be given clear indications regarding the objectives to be achieved and the options to be investigated. Preinvestment decision investigations may relate to long term planning and to decide priorities. Such investigations are in the form of Reconnaissance Surveys (cf. Para 204) where much detailed investigations are not carried out and cost estimation will also be approximate. Investigations of this nature are termed "Feasibility Studies". 203. Techno-Economic Surveys. Pre-investment decision investigations may also involve examination of various alternatives including optimisation of existing facilities to decide the best alternative from financial and operating point of view to make an ideal investment decision. Such investigations relating to new lines, doublings, gauge, conversions schemes, yard remodellings, passenger terminal etc. involving Preliminary Engineering-cum-Traffic Surveys, (cf Para 204) are termed as Techno-Economic, Surveys. In these surveys, data, regarding the growth of traffic is collected, traffic projections are made the existing facilities are evaluated the possibility of optimising them and new alternative schemes are examined. An estimate prepared based on such an investigation should under ordinary circumstances be sufficiently accurate to permit investment decision being taken." 204. Classification of Surveys. The various kinds of Surveys which are carried out as a part of investigation of Railway projects are indicated below : (i) Tr
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