华南理工大学学报(自然科学版)

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考虑同群效应的大学生出行方式选择行为研究

张锐1,2   葛郁晗1   

  1. 1. 长安大学 运输工程学院,陕西 西安 710064;

    2. 北京交通大学 综合交通运输大数据应用技术交通运输行业重点实验室,北京 100044

  • 发布日期:2025-08-22

College Students’ Travel Mode Choice Behavior Considering Peer Effect

ZHANG Rui1, 2   GE Yuhan1   

  1. 1. College of Transportation Engineering, Chang’an University, Xi’an 710064, Shaanxi, China;

    2. Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Beijing Jiaotong University, Beijing 100044, China

  • Published:2025-08-22

摘要:

研究在校大学生的校外出行方式选择行为,对于改善高校学生的校外出行环境、提高社会参与度、促进其身心健康发展具有重要意义。已有研究忽视了同伴群体对个体出行方式选择的影响,针对缺乏统一标准确定大学生有效群组的不足,通过室友关系质量量表界定有效群组,基于问卷调查获得不同出行场景下在校大学生的校外出行偏好数据;为补充同群效应在出行行为决策中的作用机制研究,从关系质量与心理特性出发,引入关系强度调节的同伴矩阵并构建多个同群效应的网络经济学线性模型,结合固定效应和两阶段最小二乘法解决潜在的内生性问题,通过模型评估确定识别和测度同群效应的最佳模型;基于模型标定结果分析宿舍群体对在校大学生个体校外出行方式选择的影响和潜在作用机制。结果表明:①相较于广义计量模型和局部聚集模型,考虑关系强度的局部平均模型在识别和测度同群效应时具有更好的稳健性。②随着出行距离的增加以及出行时间约束的放松,在校大学生个体出行方式选择行为受同伴相关行为的影响程度(即内生同群效应)降低。③同伴的月生活费、家庭成员人数、有无驾照、开放性及环保意识等因素对在校大学生个体出行方式选择具有显著的外生同群效应。④外向型个体相较于内向型个体具有更为显著的从众性同群效应,休闲娱乐场景下开放型个体比保守型个体的从众性同群效应更显著。研究成果拓展了相关理论边界,并为高校低碳出行的精细化引导与分群体干预提供实证依据。

关键词: 城市交通, 出行方式选择行为, 局部平均模型, 在校大学生, 同群效应

Abstract:

Investigating the off-campus travel mode choice behavior of college students is crucial for enhancing the off-campus travel environment of college students, increasing their social participation, and further promoting their physical and mental health development. However, previous studies neglect the influence of peer groups on individual travel mode choice and lack a unified standard for identifying effective peer groups among college students. To explore the impact of peer effect on off-campus travel mode choice behavior of college students, this study defined effective groups using a roommate relationship quality scale and collected college students’ off-campus travel preference data under different travel scenarios based on questionnaire survey, identifying effective groups from a dorm social network perspective. Multiple network economics linear models were constructed by introducing a peer matrix adjusted for relationship strength, grounded in relationship quality and psychological traits, potential endogeneity issues were addressed though combining fixed effect and two-stage least squares, and the best model to identify and measure the peer effect was determined through model evaluation. Based on the model calibration results, the influence and potential mechanism of dormitory groups on individual off-campus travel mode choice of college students were analyzed. The results show that ① the local average model that incorporates peer relationship strength has better robustness in identifying and measuring peer effect compared with generalized econometric model and local aggregate model. ② With the increase of travel distance and the relaxation of travel time constraints, the influence of endogenous peer effect on individual travel mode choice behavior decreases. ③ The factors such as monthly living expenses, number of family members, driver's license, openness to experience and environmental awareness related to peers have significant exogenous peer effect on individual travel mode choice for college students. ④ The endogenous peer effect of conformity is more pronounced for extrovert individuals compared to introvert individuals. In leisure travel scenarios, the endogenous peer effect of conformity is also significantly stronger for individuals scoring high on openness to experience relative to their conservative counterparts. The findings expand the theoretical boundaries of peer influence in travel behavior and provide empirical evidence for refined guidance and subgroup-targeted interventions to promote low-carbon travel among college students.

Key words:

urban transportation,  , travel mode choice behavior, local average model, college students, peer effect

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