Answered: The following data were taken on five…

The following data were taken on five cars traversing a 2.4-km highway: Car Time (minutes) A 1.1 B 1.5 C 1.6 D 1.2 E 1.4 Determine the traffic density, in vehicles per km.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Question 1 The table below shows twelve spot speed values measured at a specific point on an urban…

Q: A data collection study found a linear speed - density relationship for a highway as follows u/65…

A: Speed: In terms of traffic, speed is defined as the distance covered per unit of time. If speed is…

Q: A data was gathered for the 10 vehicles passing in Katipunan Intersection every 15 seconds.…

Q: A traffic engineer has set up a one-mile study segment of a corridor. He measures the speed of 10…

Q: (PROBLEM SOLVING): A one-kilometer stretch of a roadway contains 15 vehicles. The mean speed of the…

A: Given data Density of flow (k) = 15 veh/km Mean speed (v) = 60 km/hr Find flow or traffic…

Q: The recorded number of vehicles on a 1.2 km stretch of highway is 39. Calculate the density of…

Q: Question 3: (a) A section of highway is known to have a free-flow speed of 95 km/h and a capacity of…

A: Given, Free flow speed (uf) = 95 kmph Capacity (qc) = 3300 vph Passing Time (t) = 1.6 sec/veh

Q: A freeway has the following characteristics: volume: 1700 veh/hr average vehicle speed: 45 mph What…

Q: A major road intersection is traversed by vehicles at an average rate of (62.9) vehicles per hour.…

A: Reference : Transportation Engineering, Average rate of vehicles traveling. Given : Average rate of…

Q: The length of the road stretch taken for conducting moving observer experiment is 0.4 km. Time taken…

Q: B- For a segment of highway. During 20 minutes count no. of vehicles is 500 veh. And average spacing…

Q: B During a traffic speed survey, the following observations were recorded when a vehicle passes a 50…

Q: Q3/ Answer the following 1- Classify the rural highways ,indicate the design speed in km/hr for each…

Q: Question- Spot speeds of vehicles observed at a point on a highway are 40, 55, 60,65 and 80 km/h.…

Q: A traffic engineering counted vehicles on Rt. 9 and found that, on average, a vehicle passes in…

Q: Spot speed study has been carried out on a highway and collected data is shown in the table below.…

A: Given data,

Q: In a transportation study, the given traffic data was observed on a freeway where u is the speed at…

Q: A flow characteristic that is related to the density and obtained from speed data is occupancy. Data…

A: Given , Occupancy = 9.375% = 0.09375 Detector d = 6 Ft Mean vehicle…

Q: A vehicle takes 1.5 hr to travers a distance of 90 km between two cities. Calculate the journey…

Q: The space-mean speed

A: Given. Speed of vechiles observed at apoint is, v1=40 km/h v2=55 km/h v3=60 km/h v4=65 km/h…

Q: Suppose you are noticing traffic in a single lane of an expressway at a particular area. The average…

A: Average headway (time gap between two successive vehicles) = 4.2 seconds Average spacing (distance…

Q: The following data were taken on five cars traversing a 2.5-km highway. Car…

Q: Estimate the distance traveled by the vehicle during this 48-second period using L6, R6 and M3.

Q: After mall opening, the traffic volume (demand) in a certain road section (6-lane divided highway)at…

A: Step 1: Find free flowing speed-Free-flowing speed is typically the speed when the density ( k ) is…

Q: Vehicle time headways and spacings were measured at a point along a highway, from a single-lane…

A: Given:- The average values of the vehicle time headways = 2.5 sec/veh The spacing = 200 ft/veh To…

Q: What is the probability that the headway between successive vehicles will be between 7 and 11…

A: Number of car passes in 60 second i minute=6λ=Number of car passes in 1 sec=660=110 λ=110…

Q: Problem 1. Given that the value of a segment of roadway is 720 vehicle/hr, where the arrival of…

Q: A four-lane freeway, with a lane capacity of 2,000 vph, carries a peak hour volume of 4,000 vph in…

A: Traffic Speed =1/TTR a) During Peak hour V= 4000 vph C= 2000 vph TTR=1+1.1*VC4=…

Q: The following data were taken on five cars traversing a 1.7-km highway. Car…

Q: A certain expressway has a capacity of 3800 vehicles per hour and a jam density equivalent to 160…

Q: We know that q=ku for traffic flow. If we measure speeds and densities at three points within a mile…

A: 6) If we consider 3 points within a mile of a road then we will find that if at a certain point u is…

Q: A 4921.26 ft portion of a highway is known to have a free-flow speed of 27.78 m/s and a capacity of…

Q: Studies have shown that the traffic flow on a 2 lane highway adjacent to school can be described by…

Q: is the average speed of all vehicles along a roadway as determined by the distance and the rünning…

Q: The following figure shows the Level of Service (LOS) criteria for a multilane highway segment. If…

A: Solution: Given Data: Free flow speed, VS=45 mph Flow rate, S=1800 passenger cars per hour per lane…

Concept explainers

Highway Safety

Proper highway safety refers to the methods or rules that prevent highway travelers from being killed or severely injured. Proper highway safety measures help to protect motorists, cyclists, pedestrians, passengers on public transport, and so on.

Question

The following data were taken on five cars traversing a 2.4-km highway:

Car Time (minutes)

A 1.1

B 1.5

C 1.6

D 1.2

E 1.4

Determine the traffic density, in vehicles per km.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

In a traffic safety study to reduce pedestrian-vehicle accidents on a level road segment, it was estimated that by a video camera that vehicles moved during deceleration an average distance of 60 m at the moment before hitting pedestrians. If the average speed on this segment is 80 kph, compute the maximum safest speed of vehicles on this segment assuming a deceleration rate of vehicles is 3.4 m/s². Answer: v= 72.7 kph
Question 27 The following data were taken on five cars traversing a 1.3-km highway. Car Time (minutes) 1.6 1.1 C 1.6 1.7 1.6 Determine the space mean speed, in kph. Express vout answet i2 decimal places.
Five vehicles are traveling the highway from Point A to Point B at constant speeds. An observer at point A observes the five vehicles passing the designated point during an interval period of 29 seconds. Speeds of the vehicles are as follows : 55, 40, 45, 50, 32 kph. Calculate the flow in veh/hr. the final answer is 620.6897
road construction The 20-year projection of annual average daily traffic of a two-way roadway is 36.500 vehicles. Theroad serves as a highway between a residential area and a business area and the expected directionaldistribution factor is D=0.6. The 30th peak hour factor for the roadway is K=0.15. During an hourly vehiclecount, the following values were registered: 1st 15 minutes: 200 cars, 2nd 15 minutes: 130 cars, 3rd 15minute 230 cars, 4th 15 minutes. 180 cars. Estimate the peak hour factor . What is the designdirectional hourly volume for this route?
Assume that the speed-density function of a section of a highway follows the Greenshields model. The free-flow speed is 75 mph and the jam density is 176 veh/mi/In. Derive V as a function of S. In 15 minutes, you have counted that V = 150 veh/15-minute/In. Estimate the two possible speeds S (in mph) during this 15-minute period.
The following data were taken on five cars traversing a 2.5-km highway. Car Time (minutes) A 1.2 B 1.1 C 1.2 D 1.3 E 1.6 Determine the space mean speed, in kph. Express your answer in 2 decimal places
Question 35 24-h traffic count at a road section was observed to be 1000 vehicles on a Tuesday in the month of July. If daily adjustment factor for Tuesday is 1.121 and monthly adjustment factor for July is 0.913, the Annual Average Daily Traffic (in veh/day, round off to the nearest integer) is
Measurements from a single-lane roadway reveal that the average spacing and headway between passing vehicles are 200 ft and 2.4 seconds, respectively. What is the flow [veh/hr], density [veh/mi] and average speed [mi/hr] of traffic on this roadway?
On an expressway, it was recorded that there is an average of 22 vehicles that are passing the said portion of the highway in every minute. Evaluate the value of the flow of traffic on that day in veh/hr.
Please solve this question. Subject: Transportation engineering . Problem No.5 For the speed data in the table below, find the mean speed and the Standard Devaition of speed. Also find the 85th percentile, the 15th percentile and the median (50th percentile) speed from the cumulative frequency curve. Also find the Pace and Mode.
Considering linear relationship between density and speed; you are required to estimate the corresponding flow and speed values to densities of 10, 20, 30, 40, 50, 60 and 70 vehicle/km if the free flow speed is 90 km/hr and at critical situation, it is founded that there are 110 vehicles on a section of road with length 2.0 km. using the estimated values, draw a sketch showing the speed flow - density relationships?
The speeds of 10 vehicles were measured at the midpoint of a (4.04-kilometer section of roadway. Vehicles The speeds of 10 vehicles were recorded: Assuming all vehicles were traveling at constant speed over this roadway section, calculate: a. Time-mean speed in kph b. Space-mean speed in kph c. Traffic Density in veh/km 1st 2nd 3rd 4th 5th Speed (kph) 42.3 54.2 68.8 35.8 48.6 Vehicles 6th 7th 8th 9th 10th Speed (kph) 78.5 96.1 41.5 28.4 36.2