Which railing is commonly used on pedestrian bridges due to its modern aesthetic and flexible cable design?

• A. Steel tube railings
• B. Box beam guardrails
• C. Cable railings
• D. W-beam bridge railings

Answer: (C)

On pedestrian bridges, safety needs to be provided without sacrificing openness and modern appearance. Cable railings meet that need by using slender posts with tensioned cables between them, which creates a lightweight, transparent barrier. This slim, unobtrusive profile lets the bridge and surroundings show through, giving a contemporary look while still protecting pedestrians. The flexible cable design also allows longer spans between posts and easier adaptation to curved or irregular deck layouts, all while meeting height and load requirements when properly engineered.

Steel tube railings, box beam guardrails, and W-beam railings have heavier, more solid appearances and are typically used for vehicular or industrial settings; they can obstruct sightlines and are less adaptable to the open, airy aesthetic favored on pedestrian bridges.