Synonyme wurden verwendet für: Research
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    Comparison of X-way and other pedestrian crossings

    Jacobs, G.D. / Older, S.J. / Wilson, D.G. | Engineering Index Backfile | 1968

    Study of pedestrian risk in crossing busy roads in four towns

    Jacobs, G.D. / Wilson, D.G. | Engineering Index Backfile | 1967