There are many sources of information about Bus Service Planning on the Internet. You might want to further your education by taking advantage of these resources. 

National Transportation Library: Public Transportation
http://www.bts.gov/ntl/subjects/public-trans.html

National Transportation Library: Planning and Policy
http://www.bts.gov/ntl/subjects/planning.html

American Public Transit Association
http://www.apta.com

Federal Transit administration
http://www.fta.dot.gov/

Schedule Master Inc scheduling software
http://www.schedule-masters.org

Trapeze Software for transit scheduling
http://www.trapezesoftware.com/index.html