Just got Simcity 4: Deluxe for Mac...so playing it tonight!
Hi, i'll take a stab at your question; when you downloaded the MOD, did it ask you to install the MOD or just place the Unzipped files into your plugin folder? i ask because if you were asked to download your MOD it may have placed a file somewhere else that is still enabling your traffic MOD? I'm not to sure without knowing how you loaded the MOD but i guess a way to see is to delete EVERYTHING in your plugin folder & start fresh. If it STILL doesn't show your traffic after that...then you got me?! Hope this helped some bit