Dear Peter, Atlanta Airport Community Improvement Districts shortlisted Ultra, Glydways and 2getthere ATN technologies for their demonstration project. The final selection is expected in April. Two suppliers with rail-based or captive-bogie technologies were apparently told their systems did not score well on scalability.
Scalability was apparently somehow associated with rubber tires on pavement and the ability to venture off the guideway onto roadways. While such multi-modal capabilities may be desirable, they are a very long way from being proven. The significant difference in safety requirements on and off guideway is a challenge no system is known to have attempted to overcome.
The ability of systems with rubber tires on pavements to achieve the high speeds and capacities needed for scalability is less proven and probably more challenging than for captive-bogie systems. Rail-based systems are known to have demonstrated higher speeds and capacities on test tracks and in public service than systems with rubber tires on pavements and are commonly considered more scalable.
PS: We love you. Please join ATRA/pay your dues/volunteer.
Together we can fix public transportation!
Best regards,
Peter Muller, ATRA President
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