This text examines the symbiotic relationship between urban planning and electric two-wheeled vehicles in China's rapidly expanding cities. The author explains how China utilizes a "compact city" model, aiming for a "happy commute" where residents live within five kilometers of their workplaces and essential services. Because these districts are designed for short-distance travel, electric bicycles and scooters have surpassed cars in popularity, serving as the primary mode of transportation for over 300 million people. While the transition from lead-acid to lithium-ion batteries has improved performance, the source also highlights significant safety challenges regarding battery fires and the need for standardized charging infrastructure. Ultimately, the narrative suggests that integrating high-tech personal transit with decentralized urban hubs offers a sustainable alternative to the overcrowded public transit systems found in traditional megacities.