This study defines the information gathering and communication and response needed for safety at highway-rail crossings. It examines technologies for low-cost, high-safety treatments for low volume highway crossings of higher speed (130-200 kph) rail. Crossing closure and consolidation is a necessary first step. Existing train control and crossing safety systems are examined. Intelligent Transportation System technologies are examined for applicability to the information gathering, communicating, and control functions of grade crossing safety. Guidelines are offered for low volume crossings of the high speed rail line in Oregon. A preliminary cost benefit analysis is presented. Above 200kph, crossing closure or grade separation is required. In the range of 130-200 kph, ITS technologies have the potential to enhance crossing safety at much lower cost than grade separation. A global positioning system based positive train control system provides the train location and speed information needed for advanced crossing control. A traffic management center can receive train and crossing information, operate crossing systems, and grant clearance for train or highway users through the crossing. Remote lock gates provide safety at private crossings. Increased traveler information and four quadrant warning gates increase motorist compliance at public crossings. At train speeds above 175 kph, barrier gates protect rail movements. Video monitoring and detection systems provide reliable, redundant information should a vehicle become trapped in a crossing.