Consider also heat mapping actual-radar souces and originating direction. There are a few ideas to tie in HIGH end detectors.

MUST be a way to identify-, indicate-, then ignore stationary radar signs with speed display. Either the tow and drop trailer versions or the INSIDIOUS fixed to pole signs many cities inflict on citizenry. OverKILL radiation dosing is bad for "the environment" and MURDER on the health of those whose daily commute places them in irradiated corridors!!

Heat mapping should have deference for

+ waze user weight

+ confirmed sightings

+ extra weight for reports made to speed trap waze groups

* A way to penalize speed nazis who FALSELY report 'not there'. Or officers of the peace with ill temperments.

Driving faster than posted limits is not synonymous with reckless. Speed limits are not a safety issue other than school zones, high pedestrian zones even jaywalkers, or housing tracts. Often 80+ mph is the 'sweet spot' for maximum gas use efficiency. With the needlessly high cost of fuel and abuse of power trying to bleed citizens for money with outrageous fines rather than employing fiscal discipline such a feature will encourage better behavior of all parties.

Those who espouse love for the environment should respect wise fuel use.

Those who live paycheck to paycheck need minimize expenditurs by safely driving faster than indicated [fascist] limits

Users should be able to adjust their own respective history range for the heat map. Also there should be a few defaults :

+ this week
+ this month
+ ever
+ this time of day
++ 1 hour
++ 2 hours
++ 6 hours
+ peak traffic congestion

With special indication for monthly outliers like catching up with monthly quotas, holidays, weekends

I would *exclude* dui checkpoints as that is obviously reckless and not driving within limits of car-, conditions-, and driver

Combine with

http://waze.uservoice.com/forums/59223-client-how-can-we-improve-waze-on-your-phone-/suggestions/2359950-police-trailing-leading-in-motion-vs-stationary-

To reveal predation patterns also