Research Article
Effects of In-Vehicle Navigation on Perceptual Responses and Driving Behaviours of Drivers at Tunnel Entrances: A Naturalistic Driving Study
Table 1
Information of test tunnels.
| | Number | Name | Length | Portal structure | Radius of horizontal alignment | Slope |
| | 1 | Gaoding Tunnel (left) | 933 | End wall | 1300 | 0.38 | | 2 | Fengkeng Tunnel (left) | 762 | Bamboo-truncating | 3720 | 1.72 | | 3 | Wenkeng Tunnel (left) | 867 | Bamboo-truncating | - | -0.64 | | 4 | Shimen Tunnel (left) | 781 | Bamboo-truncating | 3440 | -2.36 | | 5 | Shimen Tunnel (right) | 768 | Bamboo-truncating | 2550 | 2.28 | | 6 | Wenkeng Tunnel (right) | 920 | Bamboo-truncating | 3800 | 0.71 | | 7 | Fengkeng Tunnel (right) | 795 | Stepped wall | 3450 | -1.53 |
|
|
