Research Article
Impact of Road Environment on Drivers’ Preference to Merging Location Selection in Freeway Work Zone Merging Areas
Table 1
Characteristics and descriptive statistics of factors.
| Category | Factor | Coding | Percentage (%) | Mean | SD |
| Drivers | Gender | Male | 67.4 | 1.33 | 0.47 | Female | 32.6 | Age | 18–25 | 11.0 | 2.80 | 0.94 | 26–30 | 20.4 | 31–40 | 47.3 | 41–50 | 20.7 | 31–60 | 0.6 | Driving year | Under 3 years | 17.4 | 2.38 | 0.77 | 3–5 years | 26.8 | 5 years and above | 55.8 | Education level | Secondary school and below | 32.0 | 1.93 | 0.75 | University | 43.3 | Above university | 24.7 | Average monthly income | Under 2000 yuan | 5.8 | 1.72 | 0.45 | 2000 yuan and above | 94.2 |
| Road environment | Road conditions | Road alignment | 56.4 | 1.55 | 0.69 | Number of closed lanes | 32.6 | Length of closed lanes | 11.0 | Road alignment conditions | Straight line segment | 21.0 | 2.09 | 0.86 | Horizontal curve segment | 60.7 | Longitudinal slope segment | 6.4 | Curve slope combination segment | 11.9 | Traffic environment conditions | Traffic volume and its composition | 43.6 | 2.05 | 1.17 | Work zone location | 29.6 | Work zone layout | 4.9 | Traffic organization and control measures | 22.0 | Traffic control signs | Work zone warning sign | 35.4 | 1.95 | 0.81 | Speed limit sign | 34.4 | Merging guide sign | 30.2 | Speed conditions | Speed difference with the front vehicle | 26.8 | 1.99 | 0.85 | Speed difference with front side vehicle | 56.4 | Speed difference with rear vehicle | 7.3 | Speed difference with rear side vehicle | 9.5 | Speed limit strategies | Single-speed limit | 13.1 | 2.40 | 0.71 | Repeated speed limit | 33.5 | Hierarchical speed limit | 53.4 |
| Drivers’ preference | Drivers’ preference | Location I | 2.1 | 2.77 | 0.47 | Location II | 18.6 | Location III | 79.3 |
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