A Colorado-based consulting firm has been awarded a $46.1 million contract to help oversee the next phase of Honolulu's rail project.  CH2M Hill Incorporated will perform four main tasks as the project moves ahead. The Honolulu Authority for Rapid Transportation (HART) says the agreement eventually will succeed a $150 million contract with New York-based transportation firm Parsons Brinckerhoff, which involves 23 tasks and ends next year.  Parsons and CH2M were two of three firms that bid for the new contract and HART is expected to eventually award more contracts.  Officials hope to have the first driverless trains of the $5.26 billion project running in 2017, from East Kapolei to Aloha Stadium.