Cheats and Hints

Actiontrip
Cheat codes, trainer and a unique "Make The CPU's Buses go To Wrong Direction".
http://www.actiontrip.com/cheats/trafficgiant.phtml

Cheat Channel
Many cheats for the game.
http://cheatchannel.4players.de:1033/files/trafficg.htm

Cheat Code Central
The cheats displayed in a clear simple format.
http://www.cheatcc.com/pc/trafficg.html

Cheat Codes
Cheat codes, hints and tips, FAQs, guides and walkthroughs. Links to buy the game.
http://www.cheatcodes.com/pc/4108/

Game Revolution
The cheats and a secret tip to get an invisible train.
http://www.gamerevolution.com/oldsite/games/codes/pc/traffic_giant.htm

GameFAQs
Codes and Secrets, message board, links.
http://www.gamefaqs.com/computer/doswin/code/471510.html

GameSkanker.com
Cheats for the game submitted by Robert H.
http://www.gameskanker.com/gspc/pc_trafficgiant.htm

GameWinners.com
Cheats, Discussions, links, e-mail to a friend feature.
http://www.gamewinners.com/DOSWIN/bltrafficgiant.htm

MegaGames
MegaGames Cheat Codes, Submitted by Yohay Smadga.
http://www.megagames.com/megacheats/T/pc-2864.shtml