Two Automated People Mover systems currently operate at George Bush Intercontinental Airport / Houston. The Inter-Terminal Train (ITT) is a small technology APM which provides non-secure connections between all existing terminals, a hotel, and parking areas. Also operating at the Airport is a medium technology aboveground APM which currently provides a secure connection between Terminal B and Terminal C. A key difference between the two existing APM systems involves the nature of secure vs. non-secure travel paths. These two APM systems typify an evolutionary airport scenario whereby the construction of a new secure airside APM leaves a residual non-secure landside APM to provide service for the fewer but vital number of non-secure passenger trips. This paper presents a historic synopsis of secure vs. non-secure travel path issues at George Bush Intercontinental Airport / Houston, then examines non-secure inter-terminal passenger conveyance alternatives for the Airport as a case study. Benchmarking the existing Inter-Terminal Train, available transit modes, and generation and analysis of non-secure passenger conveyance alternatives will be examined in terms of cost effectiveness and passenger level of service.
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