Number of Lane Needed for LOS C. An urban freeway has 2 lanes in each direction, but must have lanes added in what is now a median so that 5249 vph in one direction can be served at LOS C. There are 8 percent trucks and the posted speed limit is 65 mph. The terrain is level and 5ft of right-side lateral clearance can be provided. Ramp density will be 1.8 ramps mi. Using PHF -0.95, how many 12- f-wide lanes will be needed to achieve LOSC on the freeway? If any data are missing. adopt default values from Table 3.3. Assumption-Based on your knowledge of capacity of a single at a speed of 65 mph, how many lanes would be needed to service 5249 vehicles per hour in the peak direction? N assumed
Step 1 - Calculate FFS fiw fic FFS
Step 2 - Calculate v f f
Step 3 - Calculate D
Step 4-Determine LOS LOS =
Based on the outcome of your assumption, how many lanes in peak direction are needed? N required =

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?