Re: [Talk-gb-midanglia] Cambridgeshire Guided Bus

2009-11-09 Thread Donald Allwright


There are signs for the destinations, and distances.  I honestly
can't recall if there were bike symbols on them - there may well
have been.

I clearly remember that the sign had a picture of a walker, a cyclist and a 
horse rider on it when I was at the Swavesey station. However when I went back 
to photograph the signs, they were covered up again - possibly as a result of 
an email conversation I had with the guy from the council concerning its status.

Donald



  

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Re: [Talk-GB] Estimating coverage

2009-08-11 Thread Donald Allwright


The area figures are obviously including the wet bits.  Bristol is half
water: http://news.bbc.co.uk/1/hi/england/bristol/7019663.stm

This article mentions Denny Island - which was absent from OSM. I've now added 
it from the NPE map, although I don't know whether its location has changed 
with the movement of the sands/mud. Does anyone have a more up to date source 
for its outline?

Donald



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Re: [Talk-GB] Roundabout, ways and relationship policies

2009-07-23 Thread Donald Allwright

I'm just trying to think what makes a roundabout a roundabout instead of 
just a one-way system.  So far I've come up with:

1. It is one way in the appropriate direction (clockwise in the UK)
2. All the roads leave/join the outside of the loop (*)
3. It generally isn't very built-up in the middle (**)
4. It has a reasonably circular shape (***)
5. It is signposted as such

Of course, there are sadly lots of exceptions...

* Increasingly there are roundabouts with roads running through the 
middle:
http://www.openstreetmap.org/?lat=52.936219lon=-1.24996zoom=18layers=B000FTF
The road through the middle is generally one-way though, and usually just 
one road.

** 
http://www.openstreetmap.org/?lat=50.910579lon=-1.400756zoom=18layers=B000FTF
(The Charlot Place roundabout in Southampton now has the reasonably tall 
Jury's Inn hotel in the middle of it - I'm sure people can think of many 
others)

*** Can't think of any oddly shaped roundabouts off the top of my head, 
but I'm pretty certain that there are plenty. :)

How about this one:
http://osm.org/go/0EFYMXaIH--

which fulfills all of the above 5 criteria, but just has a 'short-cut' across 
one side. In this case, each 'junction' on the roundabout is controlled by 
traffic lights and has between 2 and 5 lanes. I have to navigate it frequently 
and I can't say it's one of my favourite ones!

Donald



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Re: [Talk-GB] Roundabout, ways and relationship policies

2009-07-23 Thread Donald Allwright
 How about this one:

 http://osm.org/go/0EFYMXaIH--
 
 which fulfills all of the above 5 criteria, but just has a 'short-cut' 
 across one side. In this case, each 'junction' on the roundabout is 
 controlled by traffic lights and has between 2 and 5 lanes. I have to 
 navigate it frequently and I can't say it's one of my favourite ones!

These aren't too dissimilar.  Although I'm curious how your example works - it 
looks like the short cut is only of use for people who have come off the 
southbound carrigeway of the motorway and want to get back on the southbound 
carriageway - why wouldn't they just go along the motorway instead of taking 
the junction?  (I presume I'm missing something important about who can use 
the shortcut lane :)

You can use it if you come off the southbound carriageway and want to go west 
(or into the services), or if you approach from the west (or from the services) 
wanting to go South. In both cases you could also take the outer loop, although 
I think the signposts discourage it. I think I'm correct in saying that the 
shortcut was the original part of the roundabout, and the extra extension was 
built at a later stage to accommodate increased traffic as a result of Stansted 
airport just to the east.

Donald



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Re: [Talk-GB] maxspeed field - what units should we use. etc

2009-06-04 Thread Donald Allwright

if a bot can do it then there's no reason the data consumers can't do
it too without the bot.
If you don't have a good reason to change something just leave it be.

Or alternatively, why not just run the bot on the copy of the data at the input 
to the renderer*, rather than on the database itself? The effect for the 
rendered map is the same.

* By renderer, I mean any consumer of the data (such as a routing algorithm) 
rather than just something that produces a visual representation of the data.

Donald



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Re: [Talk-GB] Free National Grid Vector Layers for gas and electricity?

2009-03-16 Thread Donald Allwright
Also, I suspect that selling maps is a nice little earner for people such as 
the land registry, so licensing them all as CC-BY-SA isn't in their interest 
(as much as it may be in the tax payer's interest).

And that, I believe, is the crux of the problem. The people who get to decide 
have a vested interest, which definitely isn't aligned with the interests of 
those who pay.

Donald



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Re: [Talk-GB] Fix My Street

2009-01-16 Thread Donald Allwright
Just thought I'd mention a very useful UK based website.
FixMyStreet.com is a project run by the MySociety people.

I mention it because we are the one riding around all the time, and we
will be bound to notice mistakes like incorrect street names etc, or
even the less mundane pot holes.

To report a problem just type in the postcode or street name /area,
locate on a (OS) map, and describe the problem. FixMyStreet then
submit the report to the local council to be fixed.

CiarĂ¡n

There is also fillthathole.org.uk, a site run by the CTC (Cyclist's Touring 
Club) aimed at defects in the road that present a hazard to cyclists. Very much 
the same idea but with a specific focus on issues that affect cyclists.

Donald



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