A consecutive upgrade consists of two sections, the first of 2 percent grade and 5000 ft long, and the second of 6 percent grade and 5000 ft long. Trucks comprise 10 percent of traffic. And recreational vehicles comprise 6 percent. Determine: the equivalent grade the PCEs
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A consecutive upgrade consists of two sections, the first of 2 percent grade and 5000 ft long, and the second of 6 percent grade and 5000 ft long. Trucks comprise 10 percent of traffic. And recreational vehicles comprise 6 percent. Determine:
- the equivalent grade
- the PCEs
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- Define each term in three sentences only. 1. Average Daily Traffic 2. Annual Average Daily Traffic (AADT) 3. Pavement CrownsAn urban freeway presently has three 12-ft lanes on a 3 percent upgrade 1.75 mi long. The traffic includes 8 percent trucks and buses (recreational vehicles are negligible). There are no lateral obstructions. Design speed is 70 MPH. (a) What is the present capacity of the upgrade? (b) How much could the capacity be increased by widening and remarking the existing traveled way to provide four 10-ft lanes up the grade?What is the capacity of a freeway with 2-lanes in one direction, 10 ft lanes, 1 ft shoulders and 4 ramps within a six-mile stretch? Show Work Correct Answer: 2335
- A particular roadway segment has a 6000-ft section of 3% upgrade, followed by a 5000-ft section of 5% upgrade. The traffic on the road includes 8% trucks and 4% recreational vehicles. Determine the PCEs.Determine the fry for the following conditions: • 4.0% upgrade for 0.875 miles Traffic composition: 12% trucks (30% SUTS/70% TTs)What is the K- design value for a roadway designed for 70 mph, and G₁--2.5% and G2=3.9%?
- HW1 What are the level of service and capacity of the weaving segment on the urban freeway shown below? ID trucks; PHF=0.91; level terrain; f,=1, FFS=65 mph 0.8 int./mi -10 percent Ls = 1,500 ft VFF = 1,815 veh/h VRF = 1,037 veh/h VFR = 692 veh/h VRR = 1,297 veh/h v= 4,841 veh/hNote that for this problem 1 interchange = 2 Ramps (1 on ramp 1 off ramp) Thank youQ: The expected daily traffic (AADT) for tow-way on a major six-lane flexible pavement highway consists of trucks of type 1 and 2 with equivalency factors as follow: type1 truck 1000/day(2. way) type2truck 500/day (2 way) 24kips(single) 24Kips(Tandem) 12kips(single) Equiv. 3.22 0.450 0.010 factor 24kips(single) 3.22 12 kips(Tandem) 0.026 Performance penod-15 years, annual growth rate=4%, tirectional distribution percent -70%, design lane percent 80 %, required structural number for subgrade = 5.7, asphalt concrete surfacing layer coefficient (4,-0.42), asphalt concrete base layer coefficient (a₂-034), gravel and soil subbase layer coefficient (93-0.12) and the modify drainage coefficient (m = 1.0) for all pavement courses Find the equivalent single axle load (ESAL) and draw a simple sketch of designed three pavement thickness courses with all necessary calculations?
- a segment of freeway consists of two upgrades of 2%, 800 m long and 3% 600 m long. Determine the PCE trucks/buses and recreational vehicles on this composite upgrade if 6% of vehicles are truck and 10% are recreational vehicles. Determine the number of lanes required for a freeway section if the section is to operate at LOS C. The input parameters include: One Cloverleaf interchange per mile (ramp density = 4 ramps/mile or 2.5 ramps/km) lane width = 12 fr (3.6m) right-side lateral clearance = 6years (1.8m) traffic composition: 10% trucks, 2% RVs V = 3000 veg/h Number of lanes: Must be greater than or equal to 2 Pero direction PHF = 0.95 Analysis segment is (0.35 miles (0.56km)) long with 4.5 % gradeIdentify and briefly discuss at least 3 risks that may be associated with this project. Highway 410/Steeles Road Project- Highway 410 currently has 4 lanes of traffic in each direction, i.e., northbound and southbound, with a 12-ft median between the northbound and southbound lanes- Steeles Road has 3 lanes of traffic in each direction, i.e., eastbound and westbound, with 4-ft median between the eastbound and westbound lanes- For this project the requirement is to: Build two off-ramps from Highway 410 to Steeles Road to, i.e., eastbound and westbound ramps Build two on-ramps from Steeles Road to Highway 410, i.e., northbound and southbound ramps Build a bridge overpass on Highway 410 over Steeles RoadDesign a highway with the following criteria (Determine the minimum radius, widening and check if it needs transition spiral) Design speed = 85 kph I = 20o e = 0.06 sight distance = 125m m = 10 m 2 lane road Typical car wheel length 2.5 m Width of pavement per lane = 3.6 m PreviousNext