Drivers say that in the Los Venados tunnel they must maneuver with a dangerous path.  They say the due to the steep inclination, breaks give up and it is especially dangerous for the vehicles loaded with 10 or 12 tons.

The accident has happened this Tuesday in the Los Venados tunnel, the route of the La Línea road that connects the municipality of Cajamarca (Tolima) with Calarcá (Quindío) exactly because a truck has lost control when its breaks gave up.

https://www.infobae.com/america/colombia/2022/01/05/una-falla-en-la-construccion-del-tunel-habria-ocasionado-el-monumental-accidente-en-la-linea/