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CVL 461: Roadway and Pavement Design. Index Name ID Section 1 2 3.

[Audio] In this presentation we want to talk respectively about Flexible Pavement Design For 10 years Flexible Pavement Design For 15 years Flexible Pavement Design For 20 years Overlay Pavement Design For 10 years Overlay Pavement Design For 15 years Overlay Pavement Design For 20 years Rigid Pavement Design For 10 years Rigid Pavement Design For 15 years Rigid Pavement Design For 20 years Comparing the manual and software results, and Life Cycle Cost Estimation (LCCA).

2. Flexible Pavement Design for 10 years.

The design period is 10 years with R=99%, S0= 0.3 and Delta Psi=1.7. (From PD1).

ESAL for 10 years pavement design is 130893. Layer coefficient a was taken 0.44 (Plant Mix high Stability). Drainage coefficient m=1.15 Minimum thickness for ESAL between 50000 and 150000 is 2 in..

The type of the soil is considered to be A-1-a..

Results. The recommended asphalt layer thickness for the asphalt design for 10 years design period is 3.5 in.

2. Flexible Pavement Design for 15 years. The recommended asphalt layer thickness for the asphalt design for 15 years design period is 3.5 in with 1.4 required SN.

2. Flexible Pavement Design for 20 years. The recommended asphalt layer thickness for the asphalt design for 20 years design period is 3.5 in with 1.45 required SN.

2. Overlay Pavement Design for 10 years. The type of the soil is considered to be A-1-a Mr for subgrade was taken from PD1 1500 psi A=0.44 Minimum thickness is 2 in.

2. Overlay Pavement Design for 10 years. The design period is for 10 years Reliability 99% S0= 0.35 Delta PSI=1.7.

2. Overlay Pavement Design for 10 years. MR from Pd1 for subgrade is 1500 psi Sn(eff) was calculated by Pavexpress software..

2. Overlay Pavement Design for 10 years. ESAL (W18) for 10 years design= 130893..

2. Overlay Pavement Design for 10 years Results. These are the results of the required layers thickness for 10 years design of overlay pavement.

2. Overlay Pavement Design for 15 years Results. These are the results of the required layers thickness for 15 years design of overlay pavement.

2. Overlay Pavement Design for 20 years Results. These are the results of the required layers thickness for 20 years design of overlay pavement.

2. Concrete Pavement Design for 10 years. Design for a rigid pavement for 10 years.

2. Concrete Pavement Design for 10 years. Modulus of rupture was assumed to be 450 psi Ec=450000 psi Poisson ratio=0.3.

2. Concrete Pavement Design for 10 years. Base layer type is aggregate with a thickness of 6 in All the other listed parameters was taken from pd1 graphs and tables.

2. Concrete Pavement Design for 10 years Results.

2. Concrete Pavement Design for 15 years Results.

2. Concrete Pavement Design for 20 years Results.

2. Comparing the software performance prediction to manual estimations.

2. LCCA. AADT is 79000 veh/year (76% are single unit trucks percentage)..

2. LCCA. AADT fraction for each hour in the day.

2. LCCA. Value of time for passenger cars. Value of time for single trucks.

2. LCCA Results.

2. LCCA Results.

2. LCCA Results. The total cost obtained is 2079000$.

Thank you for your valuable time.. u 0 gsenD Kuv.