<div dir="ltr"><div><div><div><div><div><div><div><div><div><div>Streetlamp mapping does not help.<br>All our city cycleways are within the lighting radius of street lamps, but<br><ul><li>they are often interspersed with street-linign trees.</li><li>lamps may be on the opposite side of the street than the cyclepath</li><li>street lamps have illumination bodies pointing at strange angles</li><li>some street lamps are not strong enough</li><li>cycle ways are separated from streets by guard rails that throw a dark shadow excactly on the cycle way (in more than one place) This is admittedly the most bizarre of the problems</li></ul></div></div></div></div><br></div>So if I go ahead with a smoothness-like approach, is it better to use<br><br></div><div style="margin-left:40px">lit=no|yes|poor|sufficient|good<br></div></div>or<br></div><div style="margin-left:40px">lit=yes<br></div></div></div><div style="margin-left:40px">lit:level=poor|sufficient|good<br><br></div>Thanks<br><br>Volker<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 18 January 2015 at 16:20, Martin Koppenhoefer <span dir="ltr"><<a href="mailto:dieterdreist@gmail.com" target="_blank">dieterdreist@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
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> Am 18.01.2015 um 12:16 schrieb Volker Schmidt <<a href="mailto:voschix@gmail.com">voschix@gmail.com</a>>:<br>
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> Assume you have a 100m stretch with nice illumination but there is a tiny S-bend exactly overshadowed by an evergreen tree, which produces a pitch dark spot of 10m at a dangerous point. What do you do? Put an illumination value every 5 meters or, and that's what I would do, mark the entire 100m stretch as lit=very_poor (or something similar).<br>
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</span>I d split the way - at least for properties I care for, illumination details that go beyond the lit yes/no attribute are not yet in my workflow.<br>
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I'd rather go for mapping individual street lamps before measuring raster data of light intensity, but currently this also seems too tedious ;-)<br>
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cheers,<br>
Martin<br>
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