Highway Engineering
When the width of car parking space and width of street are limited, generally preferred parking system is

45° angle parking
Parallel parking
90° angle parking
65° angle parking

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Highway Engineering
The entrance and exit curves of a rotary have

equal radii and equal widths of pavement
different radii and different widths of pavement
equal radii but pavement width is more at entrance than at exit curve
equal pavement widths but radius is more at entrance curve than at exit curve

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