Improving accuracy of road network in South Africa

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Improving accuracy of road network in South Africa

Improving accuracy of road network in South Africa

Author	Message
Andrew	A Andrew posted 6/16/2022 1:13:02 PM Post Details Share Post
A Group: Forum Members Posts: 28, Visits: 87	Thanks Tim. The update is a definite improvement, but still some anomalies. 1. Seems that motorways are being classified erratically - eg with only Motorways showing the below appears: With all roads the gaps are filled in see below: A number of disconnected road segments here: The N3 - a major national road - changes colour for some reason: ... and then back again: And then final Q is on showing the road names - they seem to appear at certain scale, but not consistently - is there a way to toggle them on demand. Cheers Andrew
	Reply Like 3
Tim Dawson	Tim Dawson posted 6/17/2022 10:51:24 AM Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.4K	Yep, OpenStreetMap data is terrible in many ways, you've illustrated some there. It's the only data I've managed to find so far though, so we either accept it, or revert to the old basic data. Road labels do appear only at certain scales and for certain road classifications. You'd have to give a specific erratic example for me to comment further.
	Reply Like 4
Andrew	A Andrew posted 6/19/2022 1:40:29 PM Post Details Share Post
A Group: Forum Members Posts: 28, Visits: 87	+x Tim Dawson - 6/17/2022 10:51:24 AM Yep, OpenStreetMap data is terrible in many ways, you've illustrated some there. It's the only data I've managed to find so far though, so we either accept it, or revert to the old basic data. It's definitely an improvement. What format do you need the road data in? Perhaps I can ask the community in SA if anyone has access to other data. On the OSM website it does show correctly, so must be linked to how the data is structured?
	Reply Like 4
Andrew	A Andrew posted 6/19/2022 3:31:00 PM Post Details Share Post
A Group: Forum Members Posts: 28, Visits: 87	Hi Tim... I've spent some time looking at the OSM data structures in GEOJSON, and think I'm making some progress. Is there an easier way I can communicate with you other than through the forum? Thanks Andrew
	Reply Like 3
Tim Dawson	Tim Dawson posted 6/27/2022 11:11:02 AM Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.4K	OSM data is too detailed to be appropriate for small-scale or aviation charts, so requires quite a bit of processing to be suitable for vector maps like ours. I can see you've sent me an email, which I'll reply to in due course.
	Reply Like 4
ZWPilot	ZWPilot posted 7/12/2022 8:04:11 AM Post Details Share Post
Group: Forum Members Posts: 5, Visits: 1	Please don't forget us guys north of the Limpopo. I have tried several times to send updates for airspace, airfields and errors for Zimbabwe to SD but it seems we seldom get any joy. I am lead to believe there is a designated person handling the Africa region but have never found out how to contact them.
	Reply Like 4