Fredrick Douglass Academy         

Fall 2006

                                                                                                                             Ms. Hui

 

a Physics Webquest                                                                        

 

The Role of Speed in Road Safety

 

Introduction

 

          Modern roads allow people to drive great distances easily and quickly. At 65 mph, cars can take us the distance of 190 miles between New York City and Boston in less than three hours.  With over 220 million registered vehicles in the United States, safety on the road has become a serious concern for lawmakers. In 2004, the National Highway Traffic Safety Administration reported over 40,000 road deaths as compared to about 6,000 road fatalities in Germany.[1]  

          What are the major causes of accidents on the road?  More specifically, what role does the speed limit play in reducing or possibly contributing to the high accident rate?  Would it realistic for us to remove the idea of a speed limit and model after Germany’s roads where there is no speed limit unless posted on the motorways, the German equivalent to our highways.[2]  Can we engineer safer roads with thicker bumpers?  George E. Pataki, the current Governor of New York, has hired your consulting firm to evaluate the state policies concerning road safety.  How fast is too fast?  Can roads be designed to safely permit people to drive at 100 miles an hour or faster?  Your firm will be analyzing the effectiveness of the current speed limit on reducing the amount of automotive accidents and proposing a potential remedy to the current safety issue.

 

 

Task

 

                                                                                                                                                    

Meeting in groups of five, you will research the effectiveness of the speed limit in reducing accidents. You will investigate the physics involved in deciding how fast people can safely drive on a specific road, through a discussion of reaction time, stopping distance, increasing the stopping time, and average speeds. Based on your research, you will also take a stance concerning the need for a speed limit, which should include a discussion of the possibility of reconstructing road bumpers to be thicker in order to protect drivers in a crash.  Your group will also consider the policy issues involved with allowing increased speed limits. In order to complete this you will use the Public Policy Analyst which is further described below.  You must to write a 4 - 6 page paper discussing the effectiveness of the current speed limit or even the need for any speed limit.  Use the resources links below to put together a convincing report that is supported by data analysis.  Also, check out the THINK! Campaign that being implemented in the UK. The following questions may be helpful:

-         Is there a relationship between number of accidents and speed limit? 

-         What are the current safety procedures/precautions taught to new drivers?

-         How would an increased or decreased speed limit affect those safety procedures?

-         How does increasing the thickness of bumpers affect the effectiveness of the speed limit in reducing causalities?

 

 

 


Process

 

          1. Using the Public Policy Analyst, your group will research the planning and development of highways and roads. This involves a six step process, be sure to use the hyperlinks to view a complete of each step. There are worksheets involved in each step, download them and fill them out as part of your research. They are to be submitted and will be graded.

 

§        Define the Problem being addressed(WS)

§        Gather Evidence of the problem’s existence (WS)

§        Identify Causes of the problem (WS)

§        Evaluate Policies being currently used to deal with the problem (WS)

§        Develop Solutions – Your ideas for dealing with the problem (WS)

§        Select the Best Solution (WS)

 

 

          2. Your group shall have people to fill each of the following roles:

§        Group Leader- Who will organize the group and coordinate the group’s effort. The leader also assists all other members in completing their tasks

§        Recorder and Secretary- Writes the results of researchers in a format that can be presented. The Recorder keeps all research materials for the group’s use

§        Researchers- These two will look at the websites and present the data for the groups as a whole to analyze

§        Presenter- The Presenter will describe the group’s findings to the class as a whole. The Presenter may also work with the whole group in developing a format for the presentation, which may be a chart, poster, PowerPoint, etc.

 

3. As part of your research you will use the links under Resources, your understanding of 1D kinematics (speed, average speed, distance, acceleration, deceleration, stopping distance, reaction time) to analyze road safety in terms of speed limits.

 

4. The final product of this webquest is a 4-6 page paper and a maximum 5 minute presentation of your group’s conclusions.  Students may make a PowerPoint presentation or posters to more effectively convey your analysis.

 

Resources

 

http://www.highwaycode.gov.uk/09.htm

http://www.driveandstayalive.com/info%20section/statistics/stats-usa.htm#bkmk_stats-usa_navbar

http://www-nrd.nhtsa.dot.gov/pdf/nrd-30/NCSA/TSFAnn/TSF2004.pdf

http://www.nysdmv.com/stats.htm

http://www.nhtsa.dot.gov/people/injury/enforce/shpolicy.htm

http://www.thinkroadsafety.gov.uk/campaigns/slowdown/slowdown.htm

http://safeny.com/spee-vt.htm

 

 

Evaluation:

 

YOUR SCORE WILL range from a possible 16 points (highest) to 4 points (lowest). 

 

Scale:  A=16             B=12               C=10               D=7                 F=4

 

4

3

2

1

PPA Policy

Followed

All questions were answered completely and rationales for the answers were clearly stated.

All questions were answered completely, but rationales for the all the answers were not clearly stated.

Not all questions were answered completely, or greater than 2 rationales for the all answers were not clearly stated.

All questions were not answered completely.

 

Presentation

 

Clear and full presentation of the findings of the survey and the research.

 

Presents findings both for and against.

 

 Clear and full presentation of the findings of the survey and the research with few mistakes.

Clear and full presentation of the findings of the survey and the research with some errors

 

 

Insufficient and/or unclear presentation of material

 

Teamwork

It is evident that a mutual effort and cohesive unit created the final product.

The team worked well together, but could have utilized each other's skills to a better degree.

The team had problems working together. Little collaboration occurred.

The final product is not the result of a collaborative effort. The group showed no evidence of collaboration.

Paper

The ideas expressed by the body of work demonstrate a high degree of knowledge on the subject of GM foods, both for and against..

The ideas expressed by the body of work are mostly informative.

The ideas expressed by the body of work demonstrate lack of information.

There was no significant information expressed in this project.

 

 

Conclusion

 

Your task is of great importance for the State of New York.  With other highly motorized countries setting a goal of reducing accidents by 40% or 50%, by either 2010 or 2012, the US hopes to reduce fatalities on the road by a much lesser percent.  Your research can help the state government more easily meet that goal, though inadequate.

 

 At the end of this webquest, you should have gained a sense of how physics can be applied to refining the public policy concerning speed limits.  Have fun.

 

 

 

Standards- NYS Standards

 

STUDENTS WILL HAVE PERFORMED THE FOLLOWING STANDARDS:

English Language Arts Standards

E1c Reads and comprehends information materials.

E2a Produce a report of information.

 

Science Standard

S1d: Demonstrates an understanding of motions and forces.

S5e: Identifies problems; proposes and implement solutions

S5f: Works individually and in teams to collect and share information and ideas.

S7b: Argues from evidence

S73: Communicates in a form suited to the purpose and the audience.

 



[1] http://www.vda.de/en/service/jahresbericht/auto2004/sicherheit/s_2.html

[2] http://driving.drive-alive.co.uk/driving-in-germany.htm