Tons of really interesting information on possible LRT for Hamilton here.....
Rapid Transit Corporate Working Team Workshop, Technical Advisory Committee and Corridor Property Owner Meetings
http://www.myhamilton.ca/NR/rdonlyres/02FB9642-6406-45B3-8699-3417399ADC9C/0/Apr20PW09034.pdf
Interesting part is that according to that report 1 way LRT might be cheaper than 2 way LRT.