Showing 1 - 2 results of 2 for search 'Sawyer, Helen E.', query time: 0.02s Refine Results
  1. 1
    Analysis of accidents before and after implementation of improved motorway signalling /

    Analysis of accidents before and after implementation of improved motorway signalling / by 275497 Cooper, B. R., Sawyer, Helen E., Rutley, K. S.

    Published 199
  2. 2
    Assessment of M25 automatic fog-warning systems : final report /

    Assessment of M25 automatic fog-warning systems : final report / by 275497 Cooper, B. R., Sawyer, Helen E., Transport Research Laboratory (Great Britain)

    Published 1993

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