Research Article
Theoretical Research on Longitudinal Profile Design of Superhighways
Table 11
Maximum slope length (unit: m).
| | Design speeds (km/h) | 180 | 160 | 140 | 120 | 100 |
| | Longitudinal slope (%) | 0.5 | — | — | — | — | — | | 1.0 | 1000 | — | — | — | — | | 1.5 | 900 | 1000 | 1100 | — | — | | 2.0 | 800 | 900 | 1000 | 1100 | 1200 | | 2.5 | — | — | 900 | 1000 | 1100 | | 3.0 | — | — | — | 900 | 1000 | | 4.0 | — | — | — | 700 | 900 |
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