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Square-Section Vehicles

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Square-Section Vehicles

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Square-Section Vehicles

Here's a good thing for vehicle designers to keep in mind: If it operates in traffic, it will have to fit inside a rectangular cross section.

Square-Section Vehicles

A rectangular cross section maximizes the carrier's volume capacity. Any element that projects beyond the square boundary, such as mirrors, exhaust pipes or antennas, must be absolutely necessary, because it's prone to being broken off. 

Lane width and bridge height restrictions define the boundaries of the rectangle. Sometimes vehicle length constraints can affect vehicle shapes, especially for low speed designs where streamlining doesn't matter. 

Square-Section Vehicles

The cab-over-engine design that was popular from the 1950s to the 1970s was a response to length restrictions. When those restrictions were relaxed and trucks could be made longer, cabovers became more unusual.

Square-Section Vehicles

This principle applies not only to road vehicles, but also to rail traffic and to shipping, especially when it must traverse narrow sea lanes and canals. 

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2 Comments on Gurney Journey: Square-Section Vehicles

  • Five Fives
    on November 27, 2022 | 14:27 Five Fivessaid :
    "Very true! Ships also have height requirements for passing under bridges, called "air draft.""
  • Lynnwood
    on November 27, 2022 | 15:56 Lynnwoodsaid :
    "That is so interesting, especially when you think about how vehicle design has changed over the years with more urban congestion.And why in general cars just seem more boring than say, muscle Carson the seventies or coupes of the thirties and to the interesting lengths manufacturers go to make today's basically utilitarian cars seem interesting! Especially in advertising!!"
Square-Section Vehicles

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