1. LESSONS LEARNT ON THE BASIS OF ACCIDENT INQUIRY REPORTS OF COMMISSIONER OF RAILWAY SAFETY (ENGINEERING CASES)

2. INTRODUCTION WHY STUDY ACIDENT REPORTS? CAUSE - EFFECT RELATIONSHIP

3. ACCIDENT TYPES LWR DISTORTION RAIL/WELD FAILURES TURNOUT/SEJ FAILURE ACCIDENT AT CONSTRUCTION SITE SLOPE FAILURES/OTHERS

5. LESSONS LEARNT FROM LWR/SWR DISTORTION UPKEEP OF FITTINGS GAP SURVEY AND ADJUSTMENT TRACK CONSOLIDATION S/R AT FISH PLATED JOINTS IN LWR DFFICIENT BALLAST DESTRESSING

6. LESSONS LEARNT FROM RAIL/WELD FAILURES EFFECTIVE USFD TESTING ZERO MISSING FITTING CHECK MOULD DIMENSIONS PRESENCE OF WELDING SUPERVISOR DEFECTIVE WELDS R ails manufactured only with clean steel, vacuum degassing and hydrogen content limited to 3 ppm to be accepted by railway.

7. LESSONS LEARNT FROM TURNOUT/SEJ FAILURE SEJ layouts USFD testing Procurement of components/fittings from one source only Renewal/Reconditioning of points and crossings

8. LESSONS LEARNT FROM ACCIDENTS AT CONSTRUCTION SITE Suitable strong barrier Night working Controlled access to work site Caution order Site order book

9. LESSONS LEARNT FROM ACCIDENT DUE TO SLOPE FAILURES Meteorological department Proper slopes, berms, catch water drains, toe walls to be ensured Adequate monsoon patrolling SR in case of deficiency noticed

10. CONCLUSION Climate of safety based on knowledge, competence, discipline and ethical conduct