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Pages 5-7

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From page 5...
... 5   Up to the 1960s, little emphasis was placed on roadside safety design. The prevailing philosophy was that reasonable and prudent drivers did not inadvertently leave the travelway, and the penalty for doing so by others was acceptable.
From page 6...
... 6 Development of Clear Recovery Area Guidelines and unrounded, at speeds of 40, 50, and 60 mph (11)
From page 7...
... Clear Recovery Area Background 7   vehicle trajectory and resulting vehicle kinematics for a wide range of variables for which data may not otherwise be available. When combined with real-world crash data, the results can be used to determine the influence of and develop relationships between various encroachment parameters.

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