Hi! We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
But as we’re losing ad-revenue from this then why not make a donation towards website running costs?. Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!
Joined: Dec 28, 2005 Posts: 2003 Location: Antrobus, Cheshire
Posted: Thu Jan 03, 2008 11:35 am Post subject:
fahl wrote:
Cant someone do this the easy way,drive past a 30mph speed cam on a known hill at a gps indicated 40mph,(be nice to note the speedo reading at same time)
There are (or at least used to be) a few roads about with distance markers accurately placed on them. The A34 south of Reading used to have such markers. They start with a small yellow disc and each 1/4 mile had a quarter of red marked on it - so at the end of a mile it was all red. I think they were there for speed checking? I used to pass them regularly in the 80's and 90's - don't know if they are still there though. All you need then is an accurate stop watch and a passenger to operate said watch. Drive at a constant speed as indicated by the GPS and mark the split times for each quarter (guess they may be kilometers now-a-days). You can then see how accurate the GPS is (and also your car speedo).
Don't motorways have accurate distance markers at the side of the road? (those little blue/red/white posts?) _________________ Phil
Joined: Feb 27, 2006 Posts: 14892 Location: Keynsham
Posted: Thu Jan 03, 2008 12:09 pm Post subject:
philpugh wrote:
Don't motorways have accurate distance markers at the side of the road? (those little blue/red/white posts?)
100 metres, they carry a location number like 75.4, meaning 75.4 Km from somewhere. And a little phone sign with an arrow showing which direction to walk to get to the closest emergency phone. We (motorway maintenance) used to use the numbers to say where something (dead rat, suitcase, box of mackerel) was. You could count them (or simply all the 75.0, 76.0, 77.0 ones), then convert kilometres to miles. But I still prefer sheep and Andy's suggestion of cylists has some attraction. _________________ Dennis
Posted: Today Post subject: Pocket GPS Advertising
We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
Have you considered making a donation towards website running costs?. Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!
All times are GMT + 1 Hour Goto page Previous1, 2, 3, 4
Page 4 of 4
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!
Hi! We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
But as we’re losing ad-revenue from this then why not make a donation towards website running costs?. Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!
Forum FAQ
Search
Usergroups
Profile
Log in for private messages
Log in
