[OSM-talk] [OSM-talk-ie] open street map - what's in it for you?

[Donald Allwright]

This is what's in it for me - compare:

<http://maps.google.com/maps?f=d&source=s_d&saddr=52.190651,0.077049&daddr=Grantchester+Rd&hl=en&geocode=%3BFdRiHAMdNSwBAA&mra=dme&mrcr=0&mrsp=0&sz=18&sll=52.191479,0.07692&sspn=0.002529,0.006974&ie=UTF8&t=h&ll=52.191279,0.07713&spn=0.004874,0.013947&z=17>

with

<http://data.giub.uni-bonn.de/openrouteservice/index.php?start=0.0762464,52.1901535&end=0.0764609,52.1922055&pref=Fastest〈=en>

and you'll see that Google not only takes you 4 miles out of the way, it also takes you on a motorway which is a definite no-no when on a bike!

Donald



________________________________
From: Someoneelse <lists at mail.atownsend.org.uk>
To: Ken Guest <ken at linux.ie>
Cc: talk at openstreetmap.org
Sent: Friday, 1 May, 2009 16:40:35
Subject: Re: [OSM-talk] [OSM-talk-ie] open street map - what's in it for you?

Ken Guest wrote:
> My own answer was a little less vague ;-)
> 

and mine:

My original reason was that there's a footpath bridge between two 
villages near me that I could never remember where it was, and that you 
can't see until you're on it, and no-one, (including the online mapping 
portals and the OS) has the area accurately mapped.

Google has roads as they were a couple of years ago and some random 
tracks with no information about access.  The OS has either field 
boundaries from the 1940s updated with some 70s-era information or white 
space (presumably because it was being opencasted at the time that they 
overflew and they knew that their data was temporary) overlaid with 
footpaths that must have been drawn by someone in the last century just 
after they'd got back from the pub, because there are some that go 
through blocks of flats and people's houses, and many that don't align 
with the (in many cases correct) 1940s footpath markings.

However, I'd also like to use a map that knows that one of the motorway 
junctions nearest my house actually exists (junction 29a of the M1 
FWIW), and I'd like to use directions that don't tell me to turn right 
off a flyover over a dual carriageway where there isn't actually a junction!

OSM have all of these correct; Google's (Tele Atlas?) data has both of 
these last two wrong and another (Navteq I think) implementation has the 
last wrong.

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