Design speed (km/hr) | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 |
Maneuver speed (km/hr) | 25 | 30 | 35 | 40 | 50 | 50 | 60 | 60 | 70 | 80 | 80 | 80 |
Deceleration (m/sec2)(1) | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 | 4.1 | 4.0 | 3.9 | 3.8 | 3.7 | 3.7 | 3.7 |
Maneuver time (sec) | 4.5 | 4.5 | 4.39 | 4.28 | 4.17 | 4.06 | 3.94 | 3.83 | 3.72 | 3.61 | 3.50 | 3.50 |
DSD design values (m) | 80 | 110 | 135 | 160 | 190 | 220 | 255 | 290 | 325 | 360 | 400 | 440 |
DSD type C (AASHTO [9] )(2) | 85 | 115 | 145 | 170 | 200 | 230 | 270 | 315 | 330 | 360 | 390 | 420 |
DSD type D (AASHTO [9] )(3) | 95 | 125 | 170 | 205 | 235 | 270 | 315 | 355 | 380 | 415 | 450 | 485 |
DSD: McGee [8] | - | 120 - 160 | - | 170 - 230 | - | 230 - 310 | - | 310 - 400 | - | 360 - 470 | - | 420 - 540 |