Computer aided train dispatching: decision support through optimization

A mini-computer based information system with on-line op timal route planning capability was developed to assist dis patchers on the complex northern portion of Southern Rail way's Alabama Division. The routing plan is revised automat ically as conditions change. Since implementation in Sep tember 1980, train delay has been more than 15 percent lower, reflecting annual savings of $316,000. The dispatching support system is now being expanded to all other Southern Railway operating divisions with $3,000,000 annual savings expected from reduced train delav.