You're in luck, I'm just in the process of editing some floor tiles.
Hang on for a few hours & I'll post a little package of treats for ya!
Just have a look in this section for the post called "Floor textures".
EDIT:
O.K sir/madam
There's a whole bunch of asphalt (sidewalk) tiles up in the database. There's more to come tomorrow evening.
They'll get cleaned up a touch too (I spotted a couple of graphical glitches).
http://forum.chaos-project.com/index.php/topic,12153.0.htmlJust let me know if you like 'em.
(no reason... I just like this emoticon!)
Please use the "Modify" button instead of double-posting, Thanks. - Zer0