Shorter equipment with enclosed platforms was introduced, and the old pavement was replaced with rubber, wood chips or other materials designed for softer landings.
The ultra-safe enclosed platforms of the 1980s and 1990s may have been an overreaction, Mr. Benepe said, but lately there have been more creative alternatives.
By 1976, because of Cleveland Union Terminal's high rent, the massive size of the facility, and the need to switch to electric locomotives to access its enclosed platforms, Amtrak decided to construct a smaller station.
Platform screen doors fully enclose the platform edge, and are synchronized to open and close with the vehicle doors to allow access and egress to and from the vehicle.
The Discovery made its last flight in March and now sits in a maintenance bay, enclosed by platforms that would normally be crawling with workers inspecting and maintaining its many systems — including the thousands of thermal tiles that cover its skin — to be ready for its next liftoff.
Another architect was talking about what material to use in order to enclose each platform.
A beam of wood 90 cm long, 1.5 cm wide, and 1.5 cm thick, suspended 45 cm off the ground with an open platform at the start end and a partially enclosed (three walls) platform containing a food reward at the finish end, was used to obtain the score of the animal's ability of maintaining balance.
