Having personally spent several nights exploring Beijing alone, I can confidently attest to the city's impressive safety. The streets are generally well-lit and bustling with locals and tourists alike, which creates a sense of security. I noticed the presence of uniformed police officers regularly patrolling key areas, adding to the feeling of safety without being intrusive. One memorable night, I strolled through the popular Wangfujing shopping district well past 10 PM. Despite the late hour, the area was busy with street vendors and pedestrians. The low crime rate is reflected in how comfortable it felt to walk alone, even when using public transportation late at night. Additionally, Beijing's commitment to public security extends beyond just policing—community watch programs and surveillance cameras contribute to deterring crime effectively. This practical approach aligns with the city’s reported public safety perception exceeding 98%, helping tourists feel at ease. Regarding the phrase "无通行到行人" noticed in some street signs, it means "no pedestrian passage," which is crucial safety signage to prevent accidents in areas restricted to vehicle traffic. Being aware of such signs adds to personal safety, especially when navigating unfamiliar routes at night. Overall, travelers interested in exploring Beijing after dark can enjoy the city with confidence. As always, basic precautions like staying in well-populated areas and keeping valuables secure should be followed, but the city's infrastructure and vigilant policing create a genuinely safe night-time environment.