Concepedia

Robert F. Heckard

RF

Statistics

Publications

2

Citations

35

H-Index

2

Active since

1977

Affiliations

Pennsylvania Department of Transportation(Current)

Robert F. Heckard is an author at Pennsylvania Department of Transportation specializing in kinesiology, social sciences, and visual impairment.

Top concepts

Publications per year

1977–1994

2

Publications

2

Relative visibility of increased legend size vs brighter materials for traffic signs

D J Mace, Philip M. Garvey, Robert F. Heckard · 1994 · 24 citations

, , +13

The use of time series analysis and intervention analysis to assess the effects of external factors on traffic indices: A case study of the effects of the speed limit reduction and energy crisis in the state of Texas

John J. Wiorkowski, Robert F. Heckard · Accident Analysis & Prevention · 1977 · 11 citations

, , +9

1–2 of 2