The traffic on the design lane of a proposed four-lane rural interstate highway consists of 40% trucks. If traffic classification studies have shown that the truck factor (average number of ESAL per truck) can be taken as 0.45. The AADT (average annual daily traffic) on the design lane during the first year of operation is projected to be 1000. Traffic growth rate annually = 4% Design life = 20 years Reliability level = 95% Standard deviation = 0.45 Design a three-layer flexible pavement using the 1993 AASHTO procedure. The pavement structure will be exposed to moisture levels approaching saturation 20% of the time and it will take about one week for drainage of water. Effective CBR of the subgrade material is 7. CBR of the base and subbase are 70 and 22, respectively. Elastic resilient modulus for the asphalt mixture is 450,000 lb/in². The initial and terminal PSI are p; = 4.2 and pt = 2.5.

Identify cases of design patterns and justify your assessment of their quality.

Give some easy-to-understand examples of designs that make compromises between efficiency and safety.

Review the importance of FIDIC (International Federation of Consulting Engineers), the Manual of Practice, and the DPWH "Blue Book" as professional documents in the area of civil engineering. In order to assist engineers and other industry professionals in their design, construction, and project management initiatives, discuss their aim, scope, and applicability. How do these publications improve engineering proficiency and skills? Give detailed instances of how they are used in real-world situations.

2. Compute area of the parcel below. -5.0 -19,7 جر 0.0 -15.0 0.0 15.0 -4,6 17,0 18.4

As civil engineers are problem-solvers, what one problem do you see yourself solving in the future and what is your proposed solution?

What is the theory behind step 6?