Here's an Orlando crime map used to make a point.
http://www.orlandosentinel2.com/data/crime/
I don't think we need a crime map. But it would be helpful to have a traffic accident map for cars, carts, bikes and pedestrians that included multi model paths.
Frequently questions come up about safety. The stripes are a good example. With an accident map you could see where the dangerous areas are and maybe stripe or add those plastic center lane speed bumps there first and see if there is an improvement.
I think many of the threads are not approached scientifically like we learned in school.
The Scientific Method
Ask a Question
Do Background Research
Construct a Hypothesis
Test Your Hypothesis by Doing an Experiment
Analyze Your Data and Draw a Conclusion
Communicate Your Results
I think we use the TOTV method.
Ask a question
Listen to opinions
Wait a couple of weeks
And then ask the question again