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Transportation Safety

Transportation Safety. Foundations of TDL Mr. Brachle. Objectives. Introduce students to the TDL Career Cluster: Transportation Systems/Infrastructure Planning, Management, and Regulation Civil Engineering (Transportation Engineering) (Content Standard #1)

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Transportation Safety

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  1. Transportation Safety Foundations of TDL Mr. Brachle

  2. Objectives • Introduce students to the TDL Career Cluster: Transportation Systems/Infrastructure Planning, Management, and Regulation • Civil Engineering (Transportation Engineering) • (Content Standard #1) • Introduce Students to Transportation Safety Concepts • (Content Standard #2 and #3)

  3. Transportation Case Study The objective of this study: • Analyze the current speed compliance ratio of traffic. • How many people do not comply with the speed limit on this stretch of road? • Generate a viable solution targeted to slowing down traffic and making this stretch of road safer for drivers and pedestrians. • Are current traffic speeds unsafe? • If they are unsafe, what can we do to slow down traffic in a safe way?

  4. Transportation Safety Background • More than 3 million transportation-related injuries a year (nationwide) • Societal cost: $231 billion a year • Loss to Nebraska: $2 billion a year • Motor vehicle crashes account for 40% of all 16-18 year old deaths in the US.

  5. Transportation Safety Background • In Nebraska, 256 people were fatally injured in traffic accidents in 2007. • Downward Trend

  6. Transportation Safety Background As of July 3rd, 2008 • 98 Fatalities • 84 in Rural Areas • 14 in Urban Areas • Compared to the 2004-2007 average • Fatalities are down 23% so far this year in Nebraska

  7. Transportation Case Study • We are going to do a case study on a stretch of road just west of Bryan HS • 48th street • between Glasgow Ave and Giles Road

  8. Transportation Case StudySTEP 1 DATA COLLECTION • Using a stopwatch, time the cars as they pass between the two landmarks. • Landmarks will be given on next slide • Record your times for each car on the worksheet provided. (Vehicle Time Worksheet)

  9. Transportation Case StudySTEP 1 • The land marks are: • The pine tree just to the right of the house • The sign by the white building

  10. SIGN TREE

  11. What Time Did You Get? • Time between the two landmarks: • 2.45 Seconds

  12. Transportation Case StudySTEP 2 CALCULATE THE SPEED • Now that we have our data, we need to find the speed of the cars in Miles per Hour. • Use the equation for speed Speed = Distance (Miles) / Time (Hours) The time it takes for the cars to travel that distance The distance the cars travel

  13. Transportation Case StudySTEP 2 • We need to convert FEET per SECOND to MILES per HOUR • There are 5,280 feet in a mile • There are 3,600 seconds in 1 hour

  14. Transportation Case StudySTEP 2 • First, find the distance the car has traveled in miles: 1 foot = 0.00018939 miles (1 / 5,280) Number of feet the car traveled x .00018939 = Distance

  15. Transportation Case StudySTEP 2 • Landmark Distance 163 Feet Distance = 163 x .00018939 Distance = .03087057 Miles

  16. Transportation Case StudySTEP 2 • Now that you have converted the distance from feet to miles, let’s convert the time from seconds to hours: • Insert the time you recorded in seconds into the equation • Number of seconds over 3,600 Number of Seconds 3,600 =TIME (in hours) 2.45 Seconds / 3,600 = .00068055 Hours

  17. Transportation Case StudySTEP 2 • Now let’s insert the TIME and DISTANCE into the Speed Equation: =Speed (MPH) DISTANCE TIME

  18. Transportation Case StudySTEP 2 • TIME = .00068055 Hours • DISTANCE = .03087057 Miles = 45.36 MPH .03087057 Miles .00068055 Hours Speed Limit = 35 MPH

  19. Transportation Case StudySTEP 3 • You and a partner will spend 20 minutes collecting data on this stretch of road. • You will time 10 different cars and calculate their speeds • Use worksheet provided

  20. Transportation Case StudySTEP 3 • Once finished: calculate the Compliance Ratio • Give the percent of vehicles going faster than the posted speed limit (35 MPH) • (# of speeders / 10) x 100 = percent of speeding vehicles (Compliance Ratio)

  21. Transportation Case StudySTEP 4 • Do we have a problem on this stretch of road? • DISCUSSON • What are the traffic laws in this area? • Speed Limit during SCHOOL? • What is or is not located on or around this stretch of road that may increase traffic speed? • Do you think that the low speed limit through here is important or should it be increased?

  22. Transportation Case StudySTEP 4 • Using the internet, you and your partner will research possible solutions to slow down the traffic. • Stop Light • Traffic Calming Device • More Enforcement • Speed Bumps • Create a power point presentation to showcase your solution.

  23. Career Pathway • Transportation, Distribution, and Logistics • Transportation Systems/Infrastructure Planning, Management, and Regulation • Civil Engineering • Transportation Engineering

  24. Civil Engineering Video… • Nebraska Career Connections • Civil Engineering Career Video http://www.nebraskacareerconnections.org/

  25. Bear Tracks Bear Tracks is a Bryan High TDL newsletter dedicated to increasing our student’ knowledge of high demand and high wage jobs in the Transportation, Distribution, and Logistics Career pathway.

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