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.

CategoryFactorCodingPercentage (%)MeanSD

DriversGenderMale67.41.330.47
Female32.6
Age18–2511.02.800.94
26–3020.4
31–4047.3
41–5020.7
31–600.6
Driving yearUnder 3 years17.42.380.77
3–5 years26.8
5 years and above55.8
Education levelSecondary school and below32.01.930.75
University43.3
Above university24.7
Average monthly incomeUnder 2000 yuan5.81.720.45
2000 yuan and above94.2

Road environmentRoad conditionsRoad alignment56.41.550.69
Number of closed lanes32.6
Length of closed lanes11.0
Road alignment conditionsStraight line segment21.02.090.86
Horizontal curve segment60.7
Longitudinal slope segment6.4
Curve slope combination segment11.9
Traffic environment conditionsTraffic volume and its composition43.62.051.17
Work zone location29.6
Work zone layout4.9
Traffic organization and control measures22.0
Traffic control signsWork zone warning sign35.41.950.81
Speed limit sign34.4
Merging guide sign30.2
Speed conditionsSpeed difference with the front vehicle26.81.990.85
Speed difference with front side vehicle56.4
Speed difference with rear vehicle7.3
Speed difference with rear side vehicle9.5
Speed limit strategiesSingle-speed limit13.12.400.71
Repeated speed limit33.5
Hierarchical speed limit53.4

Drivers’ preferenceDrivers’ preferenceLocation I2.12.770.47
Location II18.6
Location III79.3