[Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

Andrew Guertin andrew.guertin at uvm.edu
Wed Jan 11 17:19:21 UTC 2017

On 01/07/2017 06:49 PM, Bill Ricker wrote:
> On Sat, Jan 7, 2017 at 6:31 PM, Greg Troxel <gdt at lexort.com> wrote:
>> Also, we do have the implicit 30 mph tagged on many roads.   While there
>> are usually not signs, it is entirely verifable.  One only has to read
>> the law and measure the distance between houses (or observe that the
>> area is built up with businesses).   These two tasks are entirely within
>> the ability of a typical mapper.
> ​the question then is, can we tell (without driving in circles) is if an
> existing ​30 mph tag in Boston was implicit or explicit ... to find which
> might need fixing

Isn't this what the source:maxspeed and maxspeed:type keys are supposed 
to solve? So the answer is that yes, you can tell, if the original 
mapper added enough detail when they mapped it.

No idea if mappers in Boston have added that detail for you, though...

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