Citation

St John AD, Glauz WD. Transp. Res. Rec. 1976; 615: 4-9.

Copyright

(Copyright © 1976, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper presents a sample of design guides for operating speeds and service levels on grades for one-way, multilane traffic including trucks. The design guides are based on computer simulation supported by field data. The guides and supplementary charts enable the user to account for truck populations with different performance characteristics. The paper also discusses traffic characteristics and comfort and safety in upgrade flows. A procedure is described for using the reported results to predict peaking characteristics in upgrade flows.