BRETTON WOODS, N.H. — The first mountain-climbing cog railway in the world has a new coach design with larger windows, air-assisted brakes, and better sound-proofing materials.

The Mount Washington Cog Railway runs three miles up the west side of highest peak in the Northeast. It was built in 1869, and has been upgraded through the years, including building six biodiesel engines since 2007.

The new, larger front and rear windows offer expanded views. They also have been built to withstand the frequent temperatures changes from the significant change in elevation. The coach also uses rubber-infused plywood to reduce vibration and sound.

Cog Railway Owner, Wayne Presby said the sound inside the new traveling coach registered at a level of 62 decibels after a test, or levels equal to the sound inside a luxury automobile.

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