You are asked to: A. Determine the maximum peak-hour volume that the segment can serve at a LOS C. B. Make suggestions on how to increase the total capacity while maintaining the LOS at C without major investments.
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- A rural collector highway located in mountainous terrain is designed to carry a design volume of 2120 veh/day, Determine the folowing (use any necessary deta from this table and this tatie) (0) a suitable design speed (Enter the minimum design speed in m/h.) mi/h (b) lane and usable shoulder widths (in t) lane width shoulder width (c) maximum desirabie grade (as a percent) Need Help? RaadThe details of a 12-hour volume study for a 4- leg road junction are tabulated below. The N-S major road has two through lanes on each approach while the E-W minor road has one through lane on each approach. Examine the fulfilment of traffic signal Warrants 1 (Condition B) using the MUTCD 2009 standards. Minor Rd. (Higher Major Rd. (Total of approaches) Hour Start approach) Hr 1 Hr 2 Hr 3 734 98 880 122 850 120 Hr 4 955 100 Hr 5 941 105 Hr 6 915 95 Hr 7 1040 140 Hr 8 1010 150 Hr 9 790 156 а. W1B is not met b. W1B is metIf the weaving configuration below has four lanes and 2000 feet between the ramps, propose the improvements needed to reach an overall level of service of C. Assume a PHF of 0.92, 10% trucks, FFS of 65 mph, lane capacity under ideal conditions of 2,350 pcph and 0.8 interchanges per mile. VFR 1200 VPH = VFF 3000 VPH = VRR = 2300 VPH VRF 1000 VPH
- Determine the value of PTSF for a 6-mile two-lane highway in rolling terrain. Traffic data are as follows: • Volume = 1600 veh/h (two-way) • Percent trucks = 14% • Percent RVs = 4% • Peak hour factor = 0.95 • Percent directional split = 50 - 50 • Percent no-passing zones = 50HW3: LOS of Basic Freeway Given: » Four-lane freeway (2 in each direction) » Lane width =11 ft Right-side lateral clearance =2 ft vV Commuter traffic (regular users) Peak-hour, vV Peak-direction demand volume = 2,000 veh/h 5% trucks, 0% RVs PHF = 0.92 TRD = 4 ramps/mile Rolling terrain v vQ: 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?
- 5. Find the level of service of the following road: (45 points) ▪ ▪ 6-lane multilane highway, terrain: 2 miles long 4% upgrade, speed limit: 55 mi/h lanes: 11ft, a two-way left-tum lane in the median, right shoulder: 5 ft, PHF: 0.90 peak hour traffic volume in each direction: 4500 veh/h with 10% SUTs and 5% TTs ▪ 30 access points in 2 miles ▪ Solution ET = 2.745 fHV = 0.792 Vp 2104 pc/h/In FFS = 50.15 mph c = 2083 pc/h/In S = 46.13 mph D = 45.61 pc/mi/In LOS FThe details of a 12-hour volume study for a 4-leg road junction are tabulated below. The N-S major road has two through lanes on each approach while the E-W minor road has one through lane on each approach. Examine the fulfilment of traffic signal Warrants 1 (Condition B) using the .MUTCD 2009 standards Major Rd. (Total | Minor Rd. (Higher Start of approaches) approach) .a O W1B is not met .b o W1B is metA new section of Richmond Highway is being designed as a six-lane facility (three in each direction) with a two-way left-turn lane. Determine the peak-hour LOS. (Assume commuter traffic, 5% trucks, and no RVs.) Traffic data: demand volume = 3,120 veh/h PHF = 0.95 assumed base free-flow speed = 55 mi/h Geometric data: urban setting rolling terrain lane width = 11 ft shoulder widths = 4 ft (right side) and 1 ft (left side) average access point spacing = 12 points per mile on each side LOS A LOS B LOS C LOS D LOS E LOS F
- Given the following data: SSD = 430’ G = +3% Tpr = 2.5 sec Will the speed/velocity be acceptable if the road is generally posted at 30kph? Why or why not?A new section of Richmond Highway is being designed as a six-lane facility (three ineach direction) with a two-way left-turn lane. Determine the peak-hour LOS.Traffic data:• Directional design hourly volume = 3600 veh/h• PHF = 0.94• Assumed base free-flow speed = 55 mi/h (88 km/h)Geometric data:• Urban setting• Rolling terrain• Lane width = 11 ft (3.3 m)• Shoulder widths = 4 ft (1.2 m) (right side) and 1 ft (0.3 m) (left side)• Average access point spacing = 12 points per mile on each sideThe stopping sight distance of a vehicle is 295 meters. Given that the acceleration of the vehicle is 3.45 m/s2 and travelling at a maximum grade of -3.5%, determine the following: a. Velocity of the vehicle in km/h b. Reaction distance in meters c. Braking distance in ft. Provide solution asap upvote guaranteed!