Interstate Highway (4 lanes both direction) with AADT of 6000 (90% car, 10% truck) in one...

Interstate Highway (4 lanes both direction) with AADT of 6000 (90% car, 10% truck) in one direction takes a week for water to be drained from pavement and pavement will be exposed to moisture levels approaching saturation for 30% of the time. Consider design life as 20 years and traffic growth 4%.

Resilient modulus of asphalt concrete at 68°F = 450,000 lb/in²

CBR base = 100, M_r = 31,000 lb/in²

CBR subbase = 22, M_r = 13,500 lb/in²

CBR of subgrade = 6

Determine suitable pavement structure. Use the tables from your book or handouts*** Garber and Hoel, Traffic and Highway Engineering, Brooks/Cole, Current Edition Textbook, or Indiana Regulations.

Expert Solution

The pavement structure for the given flexible pavement are as follows:

Please find the attached notes.

Ally Wells answered 1 year ago

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