I've been testing routing instructions on my Garmin for routes that I use regularly - makes great quality control, as it shows up badly drawn roundabouts, incorrect streets, all sorts of rubbish.

A while back I tried to navigate to a BP service station from only a few hundred metres away. You will need to open up this link to understand the problem:

http://www.openstreetmap.org/?lat=-33.75907&lon=150.7867&zoom=17

Keep it open for reference while reading the next few paragraphs, or they won't make sense.

I was located at the eastern end of Kurrajong Road, close to the Boronia Road junction. I asked for routing instructions to the BP service station at the intersection of Glossop and Kurrajong.

The first time I tried this, the instructions were nonsense, and I found out when I got home that the BP had been placed in the middle of a median strip. I moved it to its correct location when I got home, and tried the test again next time I was in the area.

The route instructions asked me to travel to west to Birch Street, make a right turn, proceed north to Debrincat Avenue, then turn left into Glossop and proceed south to the service station -travel right round the block instead of using the service station entrance in Kurrajong Road. There are actual entrances in both Kurrajong and Glossop, and I thought that placing the node near the corner would make the router aware of this, but obviously not.

Any suggestions?

Richard

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