Based on the following traffic speed frequency table, the median and 85th percentile speeds are approximately ………. & ……….. respectively. a. 56 & 66 b. 75 & 94 c. 79 & 110 d. none  e. 67 & 92

Q: A two-lane minor road intersects a two-lane major road at 90° forming a four-leg intersection with…

A:

Q: A signalized intersection approach has an upgrade of 4%. The total width of the cross street at this…

A: This question is related to Traffic and Highway Engineering. In this problem we calculate Sum of…

Q: o 45mi/h to negotiate a severe curve on a rural highway. A warning sign for the curve is clearly…

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Q: Determine the minimum yellow interval at an intersection whose width is 40 ft if the maximum…

A: Given: Maximum allowable speed, uo = 30 mi/h Width of intersection, W = 40 ft Length of vehicle, L =…

Q: Minimum green time should usually be considered at signalized intersections when there is high ....…

A: The time management in traffic is mainly by the intersection at different locations and the amount…

Q: An signalized intersection with, EYi=O.74, if yi= 0.25 for the phase (A), cycle length for…

A: Signal cycle is the sum of time lost, reaction time, red, green, and yellow signal time.To calculate…

Q: A signalized intersection (3 phases) located in urban area in Hilla city, EYi = 0.65, lost time for…

A: Given data, Sum of Yi = 0.65 Lt = 4 sec. Number of phase n = 3 To Find effective green time for the…

Q: a three leg (T) intersection, the two-way peak hour volume on the minor road is 500 veh/hr and that…

A: Given:- minor road=500 veh/hr major road=600 veh/hr To find:- a)Type of intersection b) Basis of…

Q: A segment of a Class I two-lane highway is on rolling terrain and has an hourly volume of 600 veh/hr…

A: "Since you have posted a question with multiple sub-parts. We will solve the first three sub-parts…

Q: Determine the PTSF in each direction for a 4.5 mi (7.2 km) two-lane highway segment in level…

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Q: Calculated (not rounded) clearance interval for an intersection approach of 50 mph that needs to…

A: “Since you have posted a question with multiple questions, we will solve first two questions for…

Q: A signalized intersection approach has two lanes with no exclusive left- or right-turning lanes. The…

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Q: Consider the tabulated design intersection data and based on Webster method, then the number of…

A: Given:- The tabulated design intersection data based on the Webster method is given  The saturation…

Q: Problem 4: intersection. AAssume a full-actuated control with unit extension (passage time, PT) of 4…

A: Level-of-Service (LOS) : The notion of a traffic facility's Level-of-Service (LOS) was created to…

Q: An intersection has a three-phase signal with the movements allowed in each phase and corresponding…

A:

Q: If the all-red time required for pedestrian crossing at a two-phase signal is 12 s and the average…

A: given- 2 phase signal-red time=12 saverage normal flow for A qA=525average normal flow for B…

Q: Q4: a. At a certain at grade intersection, it's decided to use a 4 phases traffic signal for the…

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Q: The average speed of cars passing a busy intersection between 4:30 P.M. and 6:30 P.M. on a Friday is…

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Q: There are 3 vehicles observed in a 100 m section of McArthur highway. If the average time headway is…

A: Given data:Length of segment=100 mAverage time headway=4 sec

Q: An intersection whose width is 88 ft if the maximum allowable speed on the approach roads is 40…

A: The velocity is the change in speed of the vehicle or particle while it is in dynamic motion. thus…

Q: QI: A traffic signal control is being designed for a four-leg intersection on a divided highway with…

A: Step 1

Q: c) With the aid of diagrams, identify all altemative signal phasing plans based on the configuration…

A: Solution: The Alternative Signal Phasing Plans based on the configuration:

Q: Design change periods (Clearance period, Yellow, and All-Red) for the through movements for the…

A: Note : Since you have asked multiple questions, we will solve the first question for you. If you…

Q: For the STOP-controlled intersection show below, is the sight distance sufficient for safe…

A: Given  :- a STOP controlled intersection Reaction time = 2.5 s Lame width of EW street = 12 ft

Q: An approach to a pretimed signal has 25 seconds of effective green in a 60-second cycle. The…

A:

Q: determine PTSF and ATS in the peak direction if northbound volume is 1000 veh/h and southbound…

A: PTSF=BPTSF+fdnp PTSF=percent time spent following BPTSF=base percent time spent following…

Q: 8. (15 points) Calculate the “clearance period," the "yellow time," and the "all-red period" for a…

A: Yellow Time & All red time can be directly calculated by; Y=t+V2(a±g)AR=W+LV

Q: m stopping sight distance on a -3.5% grade for a design speed of 110 kph. Coefficient of friction…

A: Given:- slope grade=-3.5% design speed=110kph Coefficient of friction between tires and pavement =…

Q: If the travel time delay on a signalized intersection approach is 10 sec/veh, the stopped time delay…

A: given-travel time delay td=10 sec/veh

Q: A right-turn-only lane at the west-east approach to a signalized intersection can store a maximum of…

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Q: A highway section has a grade of -2%, a school zone is operated for 30 minutes before and after…

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Q: If the time of initial maneuver is (5 sec.), the time of passing vehicle occupies the left lane is…

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Q: Minimum green time should usually be considered at signalized intersections when there is high .. ..…

A: The time management in traffic is mainly by the intersection at different locations and the amount…

Q: (c) The speed of overtaking and overtaken vehicles are 80 and 40 kmph, respectively on a two way…

A: Given data;

Q: Homework An signalized intersection with four phases located in Hilla city with, EYi=0.70, if (y=…

A:

Q: Q1: The table below shows 15-minute volume counts during afternoon peak hours of an urban approach.…

A: Given: The AADT is 30000 vpd. The 15 min volume counts are, Time Volume 5:00 – 5:15 p.m…

Q: A segment of a Class I two-lane highway is on rolling terrain and has an hourly volume of 600 veh/hr…

A:

Q: . Calculate the free-flow speed in m/s 2. Calculate the flow rate in the opposing direction…

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Q: Develop a signal timing for the intersection shown below. Assume values as necessary (provide…

A: Given :- a intersection shown below

Q: Calculate green split for each approach (Eastbound, Westbound, Northbound, Southbound) using Webster…

A: Given Total lost time(L)=4 sec            left turn flow(p1)=900 veh/hr/ln            saturation…

Q: Compute the minimum passing sight distance for the following data: Speed of the passing car=90kph,…

A:

Q: A segment of a Class I two-lane highway is on rolling terrain and has an hourly volume of 600 veh/hr…

A:

Q: PROBLEM 4. A signalized intersection has a 4-phase signal with the allowed movements shown in the…

A: Solution: Critical Flow Ratio: Phase 1: YEBleft=2451750 , YWBL=2301725YEBL=0.14  ,…

Q: A four-lane highway (2 lanes in each direction) with 3.65m lanes has a horizontal curve designed for…

A: The stopping site distance can be calculated as SSD = vt + v2/2a Where v= velocity or design speed…

Q: A local street named Dysc Drive has a series of intersections controlled by four-way stop signs…

A: Four-way stop signs: This describes how vehicles at the intersection should proceed or cross…

Q: Determination of Level of Service for Multilane ● Analysis Example ● A segment of undivided…

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Q: ow the warrant is met (rules applied, hours in which the volume criteria were met, etc.) and refer…

A: From Traffic intersection, Refer Table 8.3, for warrant 3 , Warrant 3 is satiesfied if the total…

Q: An isolated traffic signal with pedestrian indication is to be installed on a right angled…

A:

Q: An approach to a pretimed signal has 25 seconds of effective green. The approach volume is 500 veh/h…

A:

Q: An intersection has a three-phase signal with the movements allowed in each phase and corresponding…

A: Given :