[Talk-us] TIGER "unbraid" tool now available

[Peter Miller]

The un-braiding tool sounds excellent. I haven't tried it yet and support
the idea if building it into JOSM and other mainstream tools when it is
fully tested and approved.

Another question about braided streets... When should one retain two
carriageways and when should one merge them?

Take for example Cesar Chavez St in San Francisco. It is defined by tiger as
a two distinct carriageways, but there is no central divider and as such I
would prefer it to be coded as a single road.
http://openstreetmap.org/?lat=37.74849&lon=-122.41228&zoom=17&layers=B0FT

Another example is Potrero Ave, San Francisco. Incidentally this one changes
in tiger from two carriageways to one as it crosses Mariposa St and I can
see no change in the characteristics of the road construction.
http://openstreetmap.org/?lat=37.762774&lon=-122.40617&zoom=18


Would it be appropriate to convert these examples and other like them to
simple roads?

Incidentally I am assuming that if there is a physically divider in the
centre of the road that it should be tow carriageways as with Market St
which has palm trees etc in the centre of the road.




Regards,



Peter

> -----Original Message-----
> From: talk-us-bounces at openstreetmap.org [mailto:talk-us-
> bounces at openstreetmap.org] On Behalf Of Paul Fox
> Sent: 26 April 2008 01:14
> To: talk-us at openstreetmap.org
> Subject: [Spam] Re: [Talk-us] TIGER "unbraid" tool now available
> 
> alan wrote:
>  > >> i looked at some examples the last time this came up, and i've
>  > >> looked today, and i've read that wiki page, but for the life of
>  > >> me i can't figure out what's wrong with the streets that are
>  > >> referenced.
>  >
>  > Here is a good example (until somebody fixes it :-)
>  >
>  > http://www.openstreetmap.org/?lat=37.80259&lon=-
> 122.42525&zoom=17&layers=B0FT
> 
> ah ha!
> 
> yes, now i see what you mean by "braided".
> 
> (looks like it would be fun to drive though, eh?  :-)
> 
> paul
> =---------------------
>  paul fox, pgf at foxharp.boston.ma.us (arlington, ma, where it's 49.1
> degrees)
> 
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