Problem 30: The maximum number of vehicles that pass a point on a highway during a period of 60 consecutive minutes. This volume is used for functional classification of highways, geometric design standards selection, capacity analysis, development of operational programs, and development of parking regulations.
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- Q1 The following table show the results of traffic counts for a rural highway at each 10 minutes during one hour, calculate the hour volume and the peak hour factor. Time Counts 7.00-7.10 500 7.10-7.20 575 7.20-7.30 475 7.30-7-40 525 7.40-7.50 425 7.50-8.00 5801. A transportation engineering study was conducted to determine the proper design of bike lanes. Data were gathered on bike - lane widths and average distance between bikes and passing cars. (Use three decimal places) The data from 9 streets are: Distance 2.4 1.5 2.4 1.8 1.8 2.9 1.2 3 1.2 (m) Lane Width 2.9 2.1 2.3 2.1 1.8 2.7 1.5 2.9 1.5 (m) a. Manually plot the data (draw to scale) b. Fit a straight line to the data with linear regression. Add this line to the plot.1. A transportation engineering study was conducted to determine the proper design of bike lanes. Data were gathered on bike - lane widths and average distance between bikes and passing cars. (Use three decimal places) The data from 9 streets are: Distance 2.4 1.5 2.4 1.8 1.8 2.9 1.2 3 1.2 (m) Lane Width 2.9 2.1 2.3 2.1 1.8 2.7 1.5 2.9 1.5 (m) c. If the minimum safe average distance between bikes and passing cars is considered to be 1.8m, determine the corresponding minimum lane width. d. Using the same data, determine the equation of the best fit 2nd degree curve
- Assume you are observing traffic in a single lane of MCArthur Highway at a specific location. You measure the average headway and average spacing of the vehicles as 3.2sec. and 50 m. respectively. Determine the traffic speed in kilometer/hour Blank 1. Blank 1 Add your answerThe traffic volume for a section of a highway can be estimated using the following equation: q = 15.1k[ln (195) - In(k)] Where q is the traffic flow measured in veh/hr and k is the traffic density measured in veh/mi. Based on the provided information, estimate the following (Show all your calculation steps): Maximum flow a. b. Jam density C. Maximum densityTwo routes are available to carry 1200 vehicles in peak-hour traffic. Route 1 has a posted speed limit of 45 mph and is 5 miles long. The travel time increases by 2x2, where x is vehicles in thousands. Route 2 has a limit of 55 mph and is 6.7 miles long, and the travel time increases by 1.5x. Find the user-equilibrium travel flow and travel time.
- The following cross-classification data have been developed for a European city transportation study area. House Hold (HH) Autos/HH (%) Trip Rate/Auto (%) Income Trips (%) ($) High Med Low O1+2 0 1 +2 HBW HBO NHB 10,000 0 30 70 48 48 4 2.0 6.00 28.5 38 34 28 50 | 4 72| 24 2.5 7.5 30.0 38 2 53 45 20,000 30,000 40,000 50,000 50 50 00 19 81 7.5 12.0 39.0 20 50 34 28 10 70 20 4.0 9.0 33.0 35 34 31 20 75 5 1 32 57 5.5 10.5 36.0 27 35 38 37 60,000 70 30 43 40 0010 90 8.0 13.0 41.0 16 44 Develop the family of cross-classification curves and determine the number of trips produced (by purpose) for traffic zone containing 1000 houses with an average household income of $30,000. (Use high = 55,000; medium 25,000; low = 15,000.)Question 9 For a freeway with a free flow speed of 70 mph, and an analysis volume (or flow rate) of 1,906 passenger car/hour/lane, what is the speed in mph?freeway with two northbound lanes is shut down because of an accident. At the time of the accident, the traffic flow rate is 1200 vehicles per hour per lane and the flow remains at this level. The capacity of the freeway is 2200 vehicles per hour per lane when not impacted by an accident. The freeway is shut down completely for 20 minutes after the accident; then one lane is opened 20 minutes after accident; and finally both lanes are opened 40 minutes after the accident. What is the total delay resulting from the accident (assuming D/D/1 queuing)?
- Situation III: The table below shows the reported accidents for 1 10-mile highway section of the Macapagal boulevard. Year Ave. daily Traffic 20,500 22,000 23,500 24,000 25,500 7. Compute for the severity ratio Property damage 165 Injury Accidents Fatal Accidents 2000 40 2001 150 45 2002 170 170 50 10 2003 45 2004 160 60 19 8. Compute for the accident rate for injury accidents in HMVM 9. Compute the accident rate in HMVM O69One of the following choices is a not among the variables which affect the traffic volume characteristics : * Time variation. O Type of use. Traffic counts. Composition of traffic. O Type and classification of highway.During peak hours, 3800 vehicles pass through a certain highway from 9:00 AM to 11:00 AM, withspace mean speed of 20 kph. What is the average space headway per vehicle in meters? Hint:space headway is related to the density