Question: To combat red-light-running crashes many states have installed red light cameras at dangerous intersections to photograph the license plates of vehicles that run the red

To combat red-light-running crashes many states have installed red light cameras at dangerous intersections to photograph the license plates of vehicles that run the red light. How effective are photo-red enforcement programs in reducing red-light running crash incidents at intersections? The Virginia Department of Transportation (VDOT) conducted a comprehensive study of its photo-red enforcement program. In one portion of the study, the VDOT provided crash data both before and after installation of red light cameras at several intersections. The data (measured as the number of crashes caused by red light running per intersection per year) for 13 intersections in Fairfax County, Virginia, are given in the table. Analyze the data for the VDOT. What do you conclude?

Intersection Before Camera After Camera 3.60 0.27 1.36 3 4 0.29 4.55 1.79 5 6. 2.60 2.29 2.40 2.04 3.14 2.72 8. 0.73 3.15 3.21 0.24 1.57 0.43 0.28 1.09 4.92 10 11 12 13 0.88 1.35 7.35

Step by Step Solution

★★★★★

3.33 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let 1 mean number of crashes caused by red light running per intersection before camera is installed ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1346-M-S-S-D(5181).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

To combat red light- running crashes, many states are adopting photo-red enforcement programs. In these programs, red light cameras installed at dangerous intersections photograph the license plates...

In a study of the feasibility of a red-light camera program in the city of Milwaukee, the data above summarize the projected number of crashes at 13 selected intersections over a 5-year period. (a)...

Refer to the June 2007 Virginia Department of Transportation (VDOT) study of a newly adopted photo-red-light enforcement program, Exercise. Recall that the VDOT provided crash data both before and...

To combat red-light-running crashes, many states are installing red light cameras at dangerous intersections. These cameras photograph the license plates of vehicles that run red lights and...

Impact of red light cameras on car crashes. To combat redlight- running crashes, many states are adopting photo-red enforcement programs. In these programs, red light cameras installed at dangerous...

47 Impact of red light cameras on car crashes. To combat red-light-running crashesthe phenomenon of a motorist entering an intersection after the traffic signal turns red and causing a crashmany...

Impact of red light cameras on car crashes. To combat redlight- LO5 running crashes, many states are adopting photo-red enforcement programs. In these programs, red light cameras installed at...

Question 4 (13 marks) Pure breed peas were crossed to produce smooth and wrinkled peas. The rst-generation peas were all smooth. In the second generation, 5474 smooth and 1850 wrinkled peas were...

1 Problem 1: Old Faithful The most famous geyser in the world, Old Faithful in Yellowstone National Park, has mean time between eruptions of 85 minutes. Past research has shown that the population...

Two projects have the following NPVs and standard deviations: Which of the two projects is morerisky? Project A 200 75 Project B 300 100 NPV Standard deviatiorn

Focal length of a concave mirror is (a) negative (c) depends on the position of object (b) positive (d) depends on the position of image

Next Level The book value of the asset in the early years of the asset's service will be about the samehigherlower under an accelerated method as compared to the straight - line method. The...

14.11 More on the welfare analysis of quality choice An alternative way to study the welfare properties of a monopolist's choices is to assume the existence of a utility function for the customers of...

A company receives a very large shipment of components. A random sample of 16 of these components will be checked, and the shipment will be accepted if fewer than 2 of these components are defective....

The following two acceptance rules are being considered for determining whether to take delivery of a large shipment of components: A random sample of 10 components is checked, and the shipment is...

List four examples of discrete random variables that could be observed in a new consulting business.

Which of the following statements about Operating Leverage and Risk from the lecture are TRUE: Someone with relatively high fixed costs and low variable costs will have a high level of operating...

Write out the memory map for the following code, providing all values at the end of execution. How many total bytes does this code declare for variables? double testd; struct frog h: int testi;...

Please solve the Question on page and in detail . thank You 9 The cumulative frequency table shows information about the times, in minutes, taken by 40 people to complete a puzzle. Time (m minutes)...