又查了市政府有关trail的介绍网站(http://www.ci.rochester.mn.us/departments/park/trails/index.asp),我出事的trail叫“mayowood trail”,觉得我肯定是合法滑轮滑(inline skating)的。以下是描述:
Trails & You
The mission is to promote physical activity through the use of the city trail system. The city trails are a convenient way to include physical activities such as inline-skating, biking, running or walking. Even lifestyles changes, such as walking the dog, walking to work, biking leisurely or walking briskly can benefit you significantly.