Using the before-and-after desing with yoked comparisons to estimate the effectiveness of accident countermeasures implemented at multiple treatment locations.

Author(s)
Griffin III, L.I.
Year

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Publication

Library number
910029 ST [electronic version only]
Source

College Station, TX, Texas A & M University, Texas Transportation Institute TTI, Safety Division, 1990, 28 p., 7 ref.

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