The Sustainable Urban Mobility Plan (SUMP) has been identified as the privileged tool for addressing economic, social, and environmental issues in transport policy at the urban scale from a long-term strategic perspective. Indeed, urban policymakers intend adopting measures to cope with the negative externalities generated by transport. The focus is on reducing traffic flows (number and length) of motorized-trips and minimize their related impact. Among these measures, together with electric vehicles promotion, active travel (AT) – including walking and cycling – represents an interesting strategy. This is especially true as local public transport (LPT) is progressively less attractive, also due to overcrowding and lower service quality, since the outbreak of Covid-19 pandemic. AT, moreover, creates the preconditions for a healthier life. Within this context, it is interesting to investigate to what extent SUMPs promote AT as a solution for achieving sustainable mobility (SM) at the urban scale. The paper analyses, by looking at SUMPs adopted in major Italian cities, the AT measures undertaken. The Italian case is of particular interest since its motorization rate is second only to Luxembourg in the whole European Union. Specifically, the paper exploits a multiple case-study comparative approach allowing to identify the correlation between main SUMP characteristics and AT-related initiatives. The main findings of the paper show that infrastructural AT projects play the lion role thus casting a shadow on the likely effectiveness of AT promotion. In fact, a comprehensive package approach (e.g. citizens engagement, land-use planning, gamification, data collection, etc.) for AT promotion is still lacking.

可持续城市交通计划 (SUMP) 已被确定为从长期战略角度解决城市规模交通政策中经济、社会和环境问题的特权工具。事实上，城市政策制定者打算采取措施应对交通产生的负面外部影响。重点是减少机动出行的交通流量（数量和长度），并将其相关影响降至最低。在这些措施中，连同电动汽车的推广，主动出行（AT）——包括步行和骑自行车——代表了一个有趣的策略。自 Covid-19 大流行爆发以来，由于过度拥挤和服务质量下降，当地公共交通 (LPT) 的吸引力逐渐降低，尤其如此。此外，AT 为更健康的生活创造了先决条件。在此背景下，调查 SUMP 在多大程度上促进 AT 作为实现城市规模可持续交通 (SM) 的解决方案很有趣。本文通过查看意大利主要城市采用的 SUMP 分析了采取的 AT 措施。意大利的案例特别令人感兴趣，因为它的机动化率在整个欧盟中仅次于卢森堡。具体而言，本文利用多案例研究比较方法来确定主要 SUMP 特征与 AT 相关举措之间的相关性。该论文的主要发现表明，基础设施 AT 项目发挥了重要作用，从而对 AT 推广的可能有效性投下了阴影。事实上，一个综合的一揽子方法（例如公民参与、土地使用规划、游戏化、数据收集等）。