Transportation Safety. Objectives Introduce students to the TDL Career Cluster: Transportation...

Transportation Safety

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)

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?

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.


• In Nebraska, 256 people were fatally injured in traffic accidents in 2007.

• Downward Trend

230

240

250

260

270

280

290

300

2003 2004 2005 2006 2007

Nebraska Fatalities


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

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

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. (Speed Conversion Worksheet)


• The land marks are:– The pine tree just to the right of the house– The sign by the white building

TREESIGN

What Time Did You Get?

• Time between the two landmarks: – 2.45 Seconds


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 speedSpeed = Distance (Miles) / Time (Hours)

The distance the cars travel

The time it takes for the cars to

travel that distance


• 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


• 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


• Landmark Distance

163 Feet

Distance = 163 x .00018939

Distance = .03087057 Miles


• 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

2.45 Seconds / 3,600 = .00068055 Hours

=TIME (in hours)


• Now let’s insert the TIME and DISTANCE into the Speed Equation:

DISTANCE

TIME =Speed (MPH)


• TIME = .00068055 Hours• DISTANCE = .03087057 Miles

.03087057 Miles

.00068055 Hours= 45.36 MPH

Speed Limit = 35 MPH


• 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


• 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)


• 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?


• 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.

Career Pathway

Transportation, Distribution, and Logistics

Transportation Systems/Infrastructure

Planning, Management, and Regulation

Civil Engineering

Transportation Engineering

Civil Engineering Video…

• Nebraska Career Connections – Civil Engineering Career Video

http://www.nebraskacareerconnections.org/

http://www.nebraskacareerconnections.org/

Bear TracksBear 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.

Transportation Safety. Objectives Introduce students to the TDL Career Cluster: Transportation...

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