On Tue, Oct 21, 2008 at 01:28:38PM +0200, Nic Roets wrote:
You type the name of the town, click to center, then type the name of the street. The nearest occurrence will be the first result, so clicking on itSo you calculate the distance for _all_ nodes matching the name and sort them by distance?will take you there. Implementation : Each wayType has a center point and zero or more "tagvalues", for example the name. There's an alphabetical index of the names as well as a complicated algorithm for handling the case where two tag valuesare equal by finding the nearest occurrence.
How does it work in other countries? Are there different defaults and where do they change? What "prevents" you from driving as fast inside a town asyou would outside?The US makes up more than half of our "planet".
Your point being?
So effectively you have high-speed roads with appropriate access restrictions (preventing people from entering them) running through the cities and once a road enters an area where people are allowed, there's a speed limit sign?If you consider that the USpopulation more than doubled during the 20th century, you realize that the majority of US town planning took place after the invention of the motorcar. This means you often get stretches of highway / motorway inside cities with large shoulders, embankments and railings so that it's safe to drive thereat high speed.
CU Sascha -- http://sascha.silbe.org/ http://www.infra-silbe.de/
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