As you drive down highways and see animals dead on the side of the road do you wonder if there is a better way to do things? For several years now there has been a project on the Hume Highway to assist gliders and other native animals to cross the road. Again the use of cameras is assisting scientists to see what animals use the rope bridges.
Check out the link to culverts, tunnels and land-bridges in the article. It show some great ways to get animals across roads. If you are driving into Ballarat near the nursery on Woodman’s Hill you may catch a glimpse of a tunnel put in when the bypass was being built to allow koalas go under the road. I doubt it has been effective but it shows engineers have been thinking about this for years and have come a long way.