You can try to use Mapbox Imagery instead of Bing. Sometimes they have images which where taken at a different date.
There are also other possibilities how you can map new roads. If you have an GPS device (Smartphone, Garmin, etc.) you can record GPS tracks. You can upload those tracks to OpenStreetMap and use them for mapping. Here are some guidelines: http://wiki.openstreetmap.org/wiki/GPS
OpenStreetMap
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Comment from 4rch on 10 May 2015 at 11:37
You can try to use Mapbox Imagery instead of Bing. Sometimes they have images which where taken at a different date.
There are also other possibilities how you can map new roads. If you have an GPS device (Smartphone, Garmin, etc.) you can record GPS tracks. You can upload those tracks to OpenStreetMap and use them for mapping. Here are some guidelines: http://wiki.openstreetmap.org/wiki/GPS