Able to employ the state of technology in steel-wheel, steel rail passenger systems, elevated rail transportation systems are, non the less, limited by the same technology. Once established and operational, after massive construction and right of way expenditures, the exclusive and independent facilities of elevated rail systems are capable of efficient and safe operation over extended periods of time. New equipment and rolling stock can be expected to operate efficiently, with manageable technology and maintenance requirements.
Separated from all forms of crossing traffic particularly on city streets, elevated rail trains are unimpeded by any other transportation vehicles or pedestrians. Scheduling and performance of elevated rail systems can therefore maximize the potential of equipment and trains in delivering reliable, high quality passenger services. Accessibility of elevated rail stations, and interconnections with other modes of transportation is key factors in the overall efficiency of elevated rail services. Special attention and planning to enhance accessibility to stations and elevated rail trains must assume a high priority in construction and operational phases of elevated rail system development.