[OSM-newbies] Highway Types and Speed Limits

[Morten Kjeldgaard]

On 15/10/2009, at 03.23, Alan Mintz wrote:

> Example:
>
> On California state boundary, I would tag the most common values:
>
> (speeds shown in mph here for ease - converted to kph when actually  
> tagged)
>
> maxspeed=25
> maxspeed:motorway=65
> maxspeed:primary=45
> maxspeed:secondary=40
> maxspeed:tertiary=35

[snip]

> On city boundaries for Rancho Cucamonga and Irvine, because some  
> roads are
> wider and most are faster, I might tag (again in mph):
>
> maxspeed:primary=50
> maxspeed:secondary=45
> maxspeed:tertiary=40
> lanes:primary=7

[snip]

> Does this seem OK?

Yep, I think it looks just right!

Regarding the question of whether roads should be split on  
adminstrative boundaries, this is something that client programs of  
the database really *ought* to be able to do automatically, so in  
theory it's not something that should be done by users (it will likely  
be incompletely done, anyway.)

Cheers,
Morten