>I must have had a "blond moment" when I tried searching for "start_date" as I got no results there.<br><br><a href="https://wiki.openstreetmap.org/wiki/Key:start_date" target="_blank">https://wiki.openstreetmap.org/wiki/Key:start_date</a><br>
<br>The idea would be to include start_date and end_date keys to enable a temporal GIS approach to the data. An online map could include a time slider, for example, that would respect these keys and show the requested features.<br>
<br>Roman roads are presumably a good place to start as they fit neatly with the "street map" element of the existing data. I've seen around the office British Roman Road atlases, but again copyright or licensing is going to be an issue here. The old OS maps as suggested by Jonathan will presumably be a great help. OS also have a number of free vector sources that may be useful.<br>
<br>Cheers, Joseph<br><br><br><br>
<br><div class="gmail_quote">On 22 December 2011 12:26, mick <span dir="ltr"><<a href="mailto:bareman@tpg.com.au" target="_blank">bareman@tpg.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>On Thu, 22 Dec 2011 11:35:07 +0000<br>
Joseph Reeves <<a href="mailto:iknowjoseph@gmail.com" target="_blank">iknowjoseph@gmail.com</a>> wrote:<br>
<br>
> Hi Mick,<br>
><br>
> There's plenty of resources out there that you should be able to gleam data<br>
> from. A short list, for example:<br>
><br>
> <a href="http://pleiades.stoa.org/home" target="_blank">http://pleiades.stoa.org/home</a><br>
> <a href="http://www.ahds.ac.uk/archaeology/collections/index.htm" target="_blank">http://www.ahds.ac.uk/archaeology/collections/index.htm</a><br>
> <a href="http://finds.org.uk/" target="_blank">http://finds.org.uk/</a><br>
> <a href="https://googleancientplaces.wordpress.com/" target="_blank">https://googleancientplaces.wordpress.com/</a><br>
> <a href="http://mapdata.thehumanjourney.net/vgswandb_map.html" target="_blank">http://mapdata.thehumanjourney.net/vgswandb_map.html</a><br>
> <a href="http://library.thehumanjourney.net/view/subjects/UK-Roman.html" target="_blank">http://library.thehumanjourney.net/view/subjects/UK-Roman.html</a><br>
> <a href="http://www.wessexarch.co.uk/projects/period/roman" target="_blank">http://www.wessexarch.co.uk/projects/period/roman</a><br>
><br>
> [Disclaimer, I'm responsible for one or two of those]<br>
><br>
> Some of these will give you data in formats you've asked for - plenty more<br>
> wont. Much of the data you want hasn't been recorded digitally, so you're<br>
> either going to have to start digitising yourself, or rely on the recent<br>
> work of others. There's a bit of an introduction to our Pottery Kilns of<br>
> Roman Britain map here:<br>
> <a href="http://mapdata.thehumanjourney.net/vgswandb_index.html" target="_blank">http://mapdata.thehumanjourney.net/vgswandb_index.html</a> In short, there was<br>
> a lot of manual work involved in that one.<br>
><br>
> The problem is going to be license issues. Not all archaeologists are as<br>
> eloquent with their licensing discussions as the OSM community is...<br>
><br>
> As Martin said, the key "start_date" might be interesting.<br>
><br>
> Cheers, Joseph<br>
<br>
</div>Many thanks, much to be going on with. I started with some low-res images of roads from Bill Thayer's "LacusCurtius" site:<br>
<a href="http://penelope.uchicago.edu/Thayer/E/Roman/home.html" target="_blank">http://penelope.uchicago.edu/Thayer/E/Roman/home.html</a><br>
and after a dozen or so tries managed to get a layer that varied between 10 metres and 5 km error and am in the process of re-aligning that with the sections of Roman roads from OSM (results from using the search for "roman" in QGIS->attribute table).<br>
<br>
I am also working through "Roman Roads in Britain" by Thomas Codrington to find useful information.<br>
<br>
I must have had a "blond moment" when I tried searching for "start_date" as I got no results there.<br>
<br>
I have a small list of references to search for but I just thought/hoped some mappers might have bits they have done that don't fit the "visible on the ground" requirement.<br>
<br>
Copyright and licencing is a concern as I don't really understand the relevant laws.<br>
</blockquote></div><br>