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Pages 8-9

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 8...
... 2 27-inch guardrail with 31-inch guardrail? Waiting until the 27-inch guardrail is "damaged beyond repair" may mean the guardrail stays in service for decades (1)
From page 9...
... 3 network safety. Appreciating the underlying risk reductions and costs of upgrading are fundamental to developing effective upgrading policies.

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