Effect of Pavement Conditions on Rolling Resistance and Fuel ...

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What do we mean by driving resistance and rolling resistance? • air resistance • rolling resistance • inertial resistance • gradient resistance • side force resistance • transmission losses • losses from the use <strong>of</strong> auxiliaries • engine friction 2
Factors affecting rolling resistance • Most important factors in rolling resistance: – Vehicle weight – Tire inflation • Less important: – Vehicle speed • Least important: – Tire tread design, composition and width – Tire temperature – Road structure and conditions 3
Page 1: Pavement Life Cycl
Page 5 and 6: Effect of<
Page 7 and 8: NCHRP 1-45 : Effect</strong
Page 9 and 10: 9 World Bank VOC Models Development
Page 11 and 12: P tr F a F g F c 1000 2 HDM 4
Page 13 and 14: 13 Data acquisition system • The
Page 15 and 16: 15 Slope surveys: High Precision GP
Page 17 and 18: 17 Loading conditions Light truck H
Page 19 and 20: Engine speed (rpm) Effect</
Page 21 and 22: Calibrated Fuel rate (mL/Km) . Cali
Page 23 and 24: 23 Heavy Truck: Analysis of
Page 25 and 26: Change in fuel consumption (%) . Ch
Page 27 and 28: 27 Effect
Page 29 and 30: 29 Articulated truck 29
Page 31 and 32: Part II: Effect <s
Page 33 and 34: HDM 4 repair and maintenance costs
Page 35 and 36: 35 Data Analysis (Empirical approac
Page 37 and 38: 37 Mechanistic Approach • A mecha
Page 39 and 40: 39 Failure threshold • User persp
Page 41 and 42: Failure threshold (Cont’d) • Fo
Page 43 and 44: Accumulated damage Probability dens
Page 45 and 46: Repair and Maintenance costs ($/100
Page 47 and 48: Total Cost (Cents per Truck) Exampl
Page 49: Thank you! 49

Effect of Pavement Conditions on Rolling Resistance and Fuel ...

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