Design Standards of Urban Roads and Accessory Works Article 17

Design regulations for urban road overpasses and pedestrian underpasses:1. The width of the passage way of overpasses and pedestrian underpasses and the width of the entrance and exit ways shall be at least 1.5 meters. Where entrance or exit is located on a walkway or sidewalk, passage way width after construction shall satisfy the minimum clear width requirement provided in Paragraph 1 of the preceding article.2. The height clearance of the overpass ceiling and the pedestrian underpass interior space shall be at least 2.1 meters.3. Where the entrance and exit of overpasses and pedestrian underpasses having a gradual slope construction, the gradient shall not exceed 12%.4. Hand rails shall be installed in the slope walkway and stairs, means to prevent slipping shall also be provided.
中文原文 市區道路及附屬工程設計標準第17條
市區道路人行天橋及人行地下道設計規定如下:
一、人行天橋及人行地下道通道空間及出入口寬度不得小於一點五公尺;其出入口設置於人行道上者,設置後人行道寬度應符合前條第一款最小淨寬之規定。
二、人行天橋上方及人行地下道內部空間之淨高,不得小於二點一公尺。
三、人行天橋及人行地下道之出入口為斜坡式坡道者,其坡度不得大於百分之十二。
四、人行坡道、階梯處,應設置扶手,並施作防滑處理。

English translation for reference only; the Chinese text prevails. Not legal advice.