Nice.
Although the cone isn't textured yet, the whole lot is to coming out of a single 512x512 texture, so it's going to be possible to have several 'combo' models all using a single texture between them - e.g. single cone, single light, single barrier, barrier with light on floor, barrier with cones, etc.
That's a very nice touch. Saving up on textures is always welcome.
About the logo, I tried doing some research for that in the past, but nothing great came out.. If any one want to try and do one it would be welcome.

TSK: the Jersey Barrier are indeed ugly but they would be usefull to block off some sections. And we could apply a little logo on those which could make them a little nicer to look at.
[edit]
Two things about a potential logo: to respect the city layout it should be an 'inverted' triangle (the tip is down) and the corners should be cut off. If we do just a regular triangle it could look like the DRC logo... :unsure:
At least that's what I did on the shells wall lights (
screenshot -- on this particular screenshot the triangle is upside down but you get the idea.)