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The Transportation Technology Center Inc. (TTCI) recently created a new Passenger Rail Business Unit "in response to the renewed emphasis and interest in eco-friendly passenger-rail service," according to a prepared statement.

The center appointed Dr. John Tunna to manage and direct the division. He will provide "world-class technology support" to North American railroads, the FRA and Federal Transit Administration, and state and local transportation agencies.

For the past several years, Tunna has managed TTCI's transit system improvement projects in South America, the United Kingdom and Australia. He has more than 30 years of experience in railroad track and vehicle analysis, including vehicle dynamics, structural design, train protection, risk assessment, track geometry, track maintenance and design.