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A Class I rural highway segment of 10 miles in level terrain has a base free-flow speed (BFFS) of 65 mph. The cross section has 12-ft lanes and 6-ft clear shoulders on both sides of the road. There are an average of 20 access points per mile along the segment and 20% of the segment consists of "no-passing" zones. Current traffic on the facility is 800 vph, with 10% trucks and no RVs. The directional distribution of traffic is 70/30, and the PHF is 0.87. Using a directional analysis, what is the level of service expected in each direction on this segment?
The tangent function is defined as than (t)=sin(t)/cos(t). This expression can be evaluated to solve for the tangent as long as the magnitude of cos(t) is not too near to 0
Twenty years of annual maximum rainfall depths are given below. Determine the rainfall depths to be used for storm structure design for the following annual return periods: 2, 5, 10, 25, 50, & 100 year.
If the allowable shear stress is 100 MPa, calculate the maximum shear force V that a W460 X 60 structural steel wide flange is capable of resisting. Use the average web shear approach.
What is the maximum column load in kips that could be placed on a 4-ft square temporary footing on a sand for which the standard resistance is about N=15 and the water table is at the surface A factor of safety of 2 is to be maintained against bea..
A person of mass 80kg places all their weight on the pedal of a foot operated hydraulic jack. The diameter of the hydraulic cylinder under foot pedal is 4cm and the diameter of the jack cyclinder is 9cm (Assume g is 9.81 m/s^2)
An earth embankment is compacted at water contect of 17% to a bulk density of 1.90 gm/cc.If the specific gravity of soil grains is 2.65, then what will be the degree of saturation of the compacted embankment
A carpenter uses a hammer to strike a nail. Approximate the hammer's weight of 1.8lbs, as being concentrated at the head, and assume that at impact the head is traveling in the -j direction.
Determine the minimum horizontal force necessary for 200 lb man to scale crevice (using his feet and back). The coefficient of static friction between his shoes and his back against the wall is 0.4.
Your boss has assigned you the job of designing a rapid-mix tank for the new water treatment plant for the town of Waffle. The design flow rate is 0.050 m^3/s. The average water temperature is 8 degrees celcius.
two streams discharge into a pipe as shown flows are incompressible. the volume flow rate of streams into the pipe is
A saturated clay deposit is vane-tested in-situ. A torque of 30Nm is required to shear the clat. The vane is 40mm wide by 100mm long. What is the undrained shear strength of the clat in kPa
A beam that is part of a rigid frame has end moments and mid-span moments for dead, live, and earthquake loads shown below. Determine the governing load combination for both negative and positive moments
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