TunnelColombia
1. Tunnel
A tunnel is a covered passage that carries a road through or beneath an obstacle such as a hill, mountain, building, waterway or another transport route. Road tunnels may contain one or more traffic lanes and can carry traffic in one or both directions.
Driving in a tunnel requires particular attention because visibility, available escape routes and space for avoiding hazards are limited. Drivers should follow the applicable lighting, speed, lane and following-distance rules and pay attention to emergency exits, traffic signals and variable-message signs.
What should I check before entering a tunnel in Colombia?
Follow signs and officer directions and adapt speed to the conditions. Reversing on public roads is generally restricted to parking and emergency manoeuvres; do not reverse along a tunnel to correct a missed exit.
Warning for a tunnel.
English • Traffic sign SP-37 • Tunnel. Prepare for lighting changes and observe the entrance signs.
Español • SP-37 • Túnel. Advierte la proximidad de un túnel. Prepárate para los cambios de iluminación y respeta la señalización del acceso.
Sources
🔗 Commons.wikimedia.org
🔗 Transmilenio.gov.co • MinTransporte/ANSV: Manual de Señalización Vial 2024, página PDF 140
Replacement SVG: Commons.wikimedia.org • Wikimedia Commons original • Gobierno de Chile • Public domain • Original revision 2012-12-11. Wikimedia original unmodified.
Image via Commons.wikimedia.org
Gobierno de Chile • Public domain • Source revision 2012-12-11. Wikimedia original unmodified.
Does a tunnel sign in Colombia set a universal speed limit?
No single speed can be read from the tunnel pictogram. Apply the road’s relevant limit and any permanent or electronic speed restriction, and drive more slowly when visibility, queues or another hazard require it.
Is every tunnel in Colombia open to pedestrians and cyclists?
No. Check the road category and access signs before entering. A motorway tunnel, a vehicle-restricted tunnel and a purpose-built walking or cycling underpass have different access arrangements. Emergency evacuation routes do not establish ordinary public access.

Traffic rules
Colombia