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A challenge to the Virtual Transition Principle
19/02/2025 @ 12:45 - 14:00
Please accept our sincere apologies, this meeting has been postponed until further notice.
Constantin Ciobanu, Associate, Transportation, Rail, South Rail Systems Alliance, AECOM
West of England Section hybrid meeting
In 1952, before British Rail adopted the Virtual Transition as a calculation feature for track design, a fundamental challenge was raised:
“The point should not be overlooked that the fortunate passenger in the centre of the coach travelled over a path which was that of the virtual transition, but the passenger over the bogie was subjected to an instantaneous application and relief of radial acceleration as the bogie passes over the tangent point.”
Constantin will present and discuss this challenge together with some other fundamental flaws of the principle of Virtual Transition, still a key calculation method for track alignment design. He will also discuss potential alternatives, more viable for the modern railway track design.
Meeting in-person from 12:30 for refreshments courtesy of the PWI for a 12:45 start for all.
If you are a PWI member, please book your space if would like this event to be automatically recorded in your CPD portfolio.
