Research Article
The Permitted Dimension of Guide Sign in Freeway Tunnel Restricted by the Geometric Space of the Tunnel Vault
Table 4
Guide sign dimension for three- and four-lane freeway tunnels.
| | R (m) | h0 (cm) | H3 (cm) | Ht (cm) | B (cm) | i | 2W (cm) | H (cm) | 2A (cm2) | DE (cm) | Dh (cm) |
| | 1060 | 134.5 | 10 | 500 | 850 | LS 0.041 | 1017.9 | 299.0 | 304316 | 341.0 | 486.4 | | LS 0.03 | 1019.7 | 295.0 | 300846 | 340.1 | 489.8 | | LS 0.02 | 1021.6 | 291.1 | 297379 | 339.2 | 493.2 | | 0 | 1025.3 | 283.3 | 290455 | 337.3 | 500.0 | | RS 0.022 | 983.9 | 267.6 | 263281 | 1341.9 | 526.8 | | RS 0.03 | 962.9 | 259.9 | 250269 | 1331.5 | 539.9 | | RS 0.04 | 941.8 | 252.3 | 237638 | 1320.9 | 552.8 |
| | 967 | 107.8 | 10 | 500 | 850 | LS 0.04 | 899.5 | 254.3 | 228703 | 400.3 | 484.0 | | LS 0.03 | 900.0 | 250.1 | 225103 | 400.0 | 488.0 | | LS 0.02 | 900.6 | 246.0 | 221503 | 399.7 | 492.0 | | 0 | 901.8 | 237.6 | 214304 | 399.1 | 500.0 | | RS 0.02 | 860.8 | 222.5 | 191552 | 1280.4 | 525.6 | | RS 0.03 | 840.0 | 215.1 | 180707 | 1270.0 | 538.1 | | RS 0.04 | 819.0 | 207.8 | 170215 | 1259.5 | 550.4 |
| | 875 | 81.0 | 10 | 500 | 662.5 | LS 0.04 | 772.2 | 205.3 | 158505 | 276.4 | 488.9 | | LS 0.03 | 773.5 | 202.1 | 156371 | 275.8 | 491.7 | | LS 0.02 | 774.8 | 199.1 | 154239 | 275.1 | 494.5 | | 0 | 777.6 | 192.9 | 149979 | 273.7 | 500.0 | | RS 0.02 | 741.6 | 180.9 | 134142 | 1033.3 | 520.7 | | RS 0.03 | 723.4 | 175.0 | 126607 | 1024.2 | 530.7 | | RS 0.04 | 705.0 | 169.3 | 119325 | 1015.0 | 540.6 |
| | 782 | 54.3 | 10 | 500 | 662.5 | LS 0.04 | 648.7 | 160.8 | 104303 | 338.2 | 486.5 | | LS 0.03 | 648.5 | 157.5 | 102110 | 338.3 | 489.9 | | LS 0.02 | 648.3 | 154.1 | 99916 | 338.4 | 493.2 | | 0 | 647.9 | 147.4 | 95529 | 338.6 | 500.0 | | RS 0.02 | 611.6 | 136.1 | 83216 | 968.3 | 519.4 | | RS 0.03 | 593.2 | 130.5 | 77410 | 959.1 | 528.8 | | RS 0.04 | 574.7 | 125.0 | 71836 | 949.8 | 538.0 |
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1LS stands for the left superelevation. 2RS stands for the right superelevation.
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