By 1910 this had expanded to 19 double-decker cars.
She switched from the jitney to the train last summer, saying the new double-decker cars are more spacious.
IC2 trains consist only of double-decker cars and have no separate restaurant car with a sales trolley moving about in the train.
Mr. Warsh said his agency wanted to buy 200 double-decker cars, and had asked builders to provide proposals for the new designs.
The service was operated with open-top double-decker cars.
The double-decker car would seat 187 passengers, compared with the single-level car, which seats 119 people.
E4 series trains feature double-decker cars to accommodate additional commuter traffic around Tokyo and other urban areas.
The double-decker cars would each have a capacity of 148 passengers, including space for wheelchairs.
The new trains will use double-decker cars for coach service.
Most Regio rolling stock consist of uncompartmented single and double-decker cars.