Basically Singapore. Unfortunately that country can't be model in any western countries due Chinese inherent concept of devine right to rule (mandate from heaven). The system depends on people believing in a single party in overwhelming majority (>65%) and mandatory voting. Western countries depends on majority of voters being lazy and bot involved and let a small subset of vocal minority to control the government with small margin of winning votes (~55% out of say 60% voters turnout). For a city to be designed around active lifestyle, you need strong and consistent government with good resources to implement. Even some Nordic countries that are well ran compare to say a messy western country like USA, still can't implement the active lifestyle properly and consistently across more than a single election.