Describe the bias that could influence the results of this survey. Suggest ways in which the survey could be redesigned to reduce the possibility of bias.
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To study congestion in the core of a city, a
- Describe the bias that could influence the results of this survey.
- Suggest ways in which the survey could be redesigned to reduce the possibility of bias.
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- Road Safety According to accident statistics of a certain town over the last three years, the ten intersections having the highest number of accidents are shown in the table below together with the corresponding number of accidents and the total entering vehicles for each intersection. Identify the intersections that may be con sidered hazardous, using 95% level of confidence. Intersection No. Number of Accidents Daily Entering Vehicles 243 15,900 18,300 24,000 13,600 14,200 1. 2. 220 3 310 4. 210 239 17,120 13,700 19,300 47,900 17,100 6. 250 188 8 360 9. 350 10 370Data on a traffic accident recorded on a certain intersection for the past 7 years has an accident rate of 4288 per million entering vehicles (ARMV). If the average daily traffic entering the intersection is 492, find the total number of accidents during the 7-year periodData on a traffic accident recorded on a certain intersection for the past 5 years has an accident rate of 416 per million entering vehicles. If the average daily traffic entering the intersection is 504 find the total number accidents during the 5 year period.
- At the exit of a toll gate with a single booth, vehicles arrive at random at a rate of 20 vehicles per minute. The service has an average rate of 22 vehicles per minute. However, due to variable toll fees, the service is also random with an average rate of 22 vehicles per minute. Estimate average length of queue formed at the toll gate Group of answer choices 7.09 8.09 9.09 6.09Question 3 In which of the following scenarios using traffic simulation is more helpful than data-driven predictive models? A. Understanding the impact of road occupancy license (ROL) type of works on the traffic of the surrounding road network B. Estimating the hourly traffic speed and volume under normal traffic conditions C. Proposing alternative route options for vehicles after an incident occurs on a high demand road A Both A and C OAccording to accident statistics over the last three years, the five intersections having the highest number of accidents are shown in the corresponding table. The total entering traffic for each intersection is also shown. Intersection No. of Accidents Daily Entering Vehicles No. 1 243 15,900 200 18,300 3 310 24,000 4 180 13,600 239 14,200 1. Determine the mean accident rate of these intersections per million entering vehicles. Answer in two decimal places. 2. Can we flagged intersection 1 as hazardous, using 95 percent level of confidence and using classic statistical method? Answer either Yes or No. 3. Can we flagged intersection 3 as hazardous, using 95 percent level of confidence and using classic statistical method? Answer either Yes or No. 4. Can we flagged intersection 5 as hazardous, using 95 percent level of confidence and using classic statistical method? Answer either Yes or No.
- Road Safety According to accident statistics of a certain town over the last three years, the ten intersections having the highest number of accidents are shown in the table below together with the corresponding number of accidents and the total entering vehicles for each intersection. Identify the intersections that may be considered hazardous, using 95% level of confidence. Intersection No. Number of Accidents Daily Entering Vehicles 1 243 15,900 2 220 18,300 3 310 24,000 4 210 13,600 5 239 14,200 6 250 17,120 7 188 13,700 8 360 19,300 9 350 47,900 10 370 17,100Data on a traffic accident recorded on a certain intersection for the past 5 years has an accident rate of 416 per million entering vehicles. If the average daily traffic entering the intersection is 504 find the total number accidents during the 5 year period. Answer in whole number.Can someone please show me how to solve this step by step. Thank you Suppose you are hired by the UHM Transportation and Traffic Lab (TTL) to analyze vehicle arrivals at one lane of the interchange bridge connecting I-25 and I-40 for the period from 12:00am to 4:00am in a weekday. It is known that vehicle arrivals follow a Poisson process at this location. There is a single-loop detector embedded on this lane at the end of the interchange bridge. Since you do not want to go to the bridge to count vehicles at this time period, you decided to use the loop detector data for the analysis. Of the 720 20-second intervals (the loop detection system stores data every 20 seconds), 508 intervals were identified to have at least one vehicle detected. Assume the loop detector is free of error. Please estimate the vehicle arrival rate (vehicles per second) for this lane. With the estimated arrival rate, please calculate the probability of having three or more vehicles detected in a 20-second…
- At an impaired driver checkpoint, the time required to conduct the impairment test varies (according to an exponential distribution) depending on the compliance of the driver, but takes 60 seconds on average. If an average of 30 vehicles per hour arrive (according to a Poisson distribution) at the checkpoint, determine the average queue length in vehicles.5. The table below gives data on accepted and rejected gaps of vehicles on the minor road of an unsignalized intersection. If the arrival of major road vehicles can be described by the Poisson distribution, and the peak hour volume is 1100 veh/h, determine the expected number of accepted gaps that will be available for minor road vehicles during the peak hour. Number of Rejected Gaps > t Number of Accepted Gaps >t Gap (t) (s) 1.5 92 3 2.5 52 18 3.5 30 35 4.5 10 62 5.5 2 100At the exit of a toll gate with a single booth, vehicles arrive at random at a rate of 20 vehicles per minute. The service has an average rate of 22 vehicles per minute. However, due to variable toll fees, the service is also random with an average rate of 22 vehicles per minute. If the operator of the toll road in the previous problem wants to improve the current condition at the toll plaza, determine the new queue characteristics if the number of toll booths is increased to 2. Estimate the average waiting time of vehicles