Importance:

• Survey and compare in effect of different rail routes on the train wheel friction
• Determination of average friction rate by the wheels of trains in each of the five routes studied
• Survey in amount of movement effect on train wheels friction in different routes

Results:

• Determination of friction per kilometer index for 5 routs in Iran railway network
• Determine the most erosion of routes and define corrective and preventive actions to reduce friction
• Determine the amount of movement effect in each rout on friction of train wheels
• Define some proceedings to reduce the high costs caused by premature friction of the wheels