论文标题
城市空间结构和车辆里程的潜力减少：在雇佣子中心内外工作的可及性的影响
Urban Spatial Structure and the Potential for Vehicle Miles Traveled Reduction: The Effects of Accessibility to Jobs within and beyond Employment Sub-centers
论文作者
论文摘要
这项研究研究了城市多中心空间结构与驾驶之间的关系。我们在洛杉矶确定了46个就业子中心，并计算了对这些子中心内外的工作的访问权限。为了解决潜在的内生性问题，我们使用20世纪初期对历史重要的地点和运输基础设施的访问权作为工作可及性指数的工具变量。我们的两个阶段托比特（Tobit）模型表明，与该地区旅行的家用车辆里程有负相关。在各种可访问性措施中，子中心外部获得工作的弹性最大（-0.155）。我们研究了在获得非中心工作的最高五分位数中的位置，发现这些位置通常是内环的郊区发展，靠近城市地区的核心，距离子中心不远，这表明填充填充策略填补了子中心之间的空白，而不是专注于已经可以访问的众所周知的市区和大型子中心，可以最大程度地减少陆地陆地的使用方法。
This research examines the relationship between urban polycentric spatial structure and driving. We identified 46 employment sub-centers in the Los Angeles Combined Statistical Area and calculated access to jobs that are within and beyond these sub-centers. To address potential endogeneity problems, we use access to historically important places and transportation infrastructure in the early 20th century as instrumental variables for job accessibility indices. Our Two-stage Tobit models show that access to jobs is negatively associated with household vehicle miles traveled in this region. Among various accessibility measures, access to jobs outside sub-centers has the largest elasticity (-0.155). We examine the location of places in the top quintile of access to non-centered jobs and find that those locations are often inner ring suburban developments, near the core of the urban area and not far from sub-centers, suggesting that strategies of infill development that fill in the gaps between sub-centers, rather than focusing on already accessible downtowns and large sub-centers, may be the best land use approach to reduce VMT.
