The license plates of motor vehicles having letters 3 inches high can be read by a person with 20/20 vision at a maximum distance of 54 feet for every inch height of letter. A witness with 20/40 vision testifying in court regarding a speeding driver claims that he noted the license plate number accurately when he was 85 feet from this speeding car that goes in the same direction. If he claims that he took 1.5 seconds to read the license plate, what is the reliability of his testimony?

Q: A driver tailgates when they follow too closely. Explain why tailgating is bad in detail.

A: Tailgating      Tailgating means driving too close to other vehicles in front of you.  This is a…

Q: shockwaves are formed on high way roads and how their occurrence can be reduced or mitigated.

A: The solid elastic surface of road produced by moving vehicles heavily loaded causes strong pressure…

Q: At the pedestrian crossings there are fluctuations in the noise level and stability at * the…

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Q: 2. A vehicle (SUV) is to overtake a bus as it enters an acceleration lane. The speed of the SUV is…

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Q: • A roadway segment with two lanes of traffic was monitored for speeds over a length of 1 mile. 10…

A: number of vehicles sampled=m=10distance=d=1mileLane 1…

Q: 2 Reflection question 1) Researchers have used analogies between the flow of fluids and the movement…

A: The main deficiency in using fluid flow theory to describe traffic flow is that unlike fluids which…

Q: 4) You have been called to testify as an expert witness in a trial involving a head-on collision.…

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Q: A construction zone on a highway has a posted speed of 40 kmph. The speeds of vehicles passing…

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Q: QUESTION 3 To measure the stopping sight distance, what is the height (ft) of the driver's eye?

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Q: Aloha! This question I'm stuck on in my class. COuld you help?   A driver traveling North on a…

A: Given data: Speed of vehicle v1 = 100 km/hr = 27.77 m/s Reaction time tr1 = 1 sec. Coefficient of…

Q: COMPUTE THE MINUMUM PASSING SIGHT DISTANCE FOR THE FOLLOWING DATA: SPEED OF THE PASSING CAR = 90…

A: Given data,  Va = 90 KPH Vb = 80 KPH T1 = 4 sec T2 = 9 sec a = 2.4 KPh/s D3 = 80 m

Q: 2. A section of a roadway changes its speed from 65 mph to 45 mph due to start of a work zone. If…

A: The initial speed, u = 65mph = 95.33 ft/sec The final speed, v = 45mph = 66 ft/sec The visible…

Q: 2.33 A test of a driver's perception/reaction time is being conducted on a special testing track…

A: The initial speed of the vehicle, vo= 50mi/hrThe distance between the vehicle and the object when…

Q: To "tailgate" is to follow another vehicle at an unsafe distance. Detail the many problems that…

A: Numerous issues, such as a higher chance of collision, less vision, slower reaction times, greater…

Q: A driver tailgates when they follow too closely. Explain why tailgating is bad in detail.

A: Tailgating is a dangerous driving behavior where a driver follows another vehicle too closely,…

Q: Please solve this question. Subject: Transportation engineering Fillet Radius Problem (Airport…

A: Given ?=50.4 ft, ?=40.5 ft, ?=25.5 ft design group III (110.3 ft wingspan) (Table 6-2) centerline…

Q: Q1) Choose the correct answer.. 1-The first stage in traffic engineering studies is.. A. Traffic…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: for you, will you hit the lead vehicle? If so at what speed will you be going?

A: V = 70 mph L = 20 ft t = 1.5 secf=0.28one car length spacing for each 10 mphNeed to find

Q: A driver with 20/15 vision can read a given sign at a distance of 36 ft from the sign. Calculate the…

A: A driver with 20/15 vision can read a sign at a distance of  (Xsight = 36ft ) from the sign.…

Q: What is the intersection sight distance (ft) needed at a stop controlled intersection for a single…

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

Q: in this phase, the driver acquires sufficient information concerning the object or condition…

A: To Determine Which of the given option is correct regarding perception reaction time (PRT).

Q: **Please draw all necessary diagrams showing shockwaves.** Due to a road crash, the southbound…

A: The propagation velocity of shockwave is given by: Where, vsw = Propagation velocity of shock wave…

Q: The following data was collected from a lane when the highway was operating at capacity. Spot…

A: As per the terms and conditions of the Bartleby we are supposed to answer only 3 subparts, please…

Q: The table below represents data that was observed and collected on a given roadway. Speed 0-10 Range…

A: Answer We need to find the % vehicle and cummulative % vehicle for a given speed range in order to…

Q: If the coefficient of friction between vehicles and the roadway is 0.4 and the radius of the…

A: Solution: Given Data: Coefficient of friction μ=0.4Radius of curvature of road R=30 m

Q: A.1. The three types of sight distance are:

A: Sight Distance:

Q: A man drove from the station A to station B, 60 km away, at an average speed of 40kph and return to…

A: The given data is shown below: Distance between station A and B=60 kmAverage speed=40 kph and 24 kph

Q: Compare and contrast the different metering systems that are used in traffic-signal ramp control…

A: Ramp metering is the method by which the flow of vehicles towards the busy highway is controlled by…

Q: 5. Calculate the minimum passing sight distance required for a two-lane rural roadway that has a…

A: The formula of minimum passing sight distance is given by,

Q: From a point beside a road, a one way traffic stream is observed to consist of - A stream of cars…

A: The velocity of the car is vc=90 kmph The time headway for the car is hc=10 s. The velocity of the…

Q: akes about 3 ss for a driver having 0.1%% alcohol in his system to do the same. If such drivers are…

A: Normal drivers : SSD=ut+u22a SSD=440.75+4422212SSD=35.195ft

Q: Part 2 - Solving: Observers stationed at two sections A-A and B-B, 200 m apart on a highway, record…

A: The given table showen below, Vechile Section A-A Section B-B A To To+7.6 sec B To +4.25 To +…

Q: Determine the number of lanes (both for upgrade direction and downgrade direction) required for a…

A: Transportation designing is a sub-discipline of structural designing which manages the utilization…

Q: How tall (in inches) do the letters on an expressway sign need to be to be readable from inside a…

A: How tall (in inches) do the letters on an expressway sign need to be to be readable from inside a…

Q: A driver on a level two-lane highway observes a truck completely blocking the highway. The driver…

A: According to given data  A driver on a level two-lane highway observes a truck completely blocking…

Q: A grab driver is traveling at 15 m/s when the traffic light /87 ft ahead suddenly turns red. The…

A: given data : velocity of driver = 15 m/s distance of traffic light = 239.87 meter duration of light…

Q: A Ford Everest skidded into a intersection of Maharlika Highway and Circumferential Road and struck…

A: Given: Speed of car at the time of impact=8 kmph Length of skid marks= 40 m grade= -0.05 length of…

Q: A witness with 20/60 vision supplied to the investigating officer the license plate number of a…

A:

Q: The main reason why there are a lot of accidents happening on an intersection is THE LACK OF TRAFFIC…

A: True  Lack of traffic signals at intersections is the main reason for lot of accidents happening on…