Cycling tunnel

It was opened in 2018 and became Israel's first cycling tunnel,[3] Historically, bicycle tunnels have mostly been used in densely populated areas or areas with mountainous terrain which otherwise prevents safe access by bicycle.

[4] The Kennedytunnel (690 m) built in 1969, is an important tunnel under the Scheldt river south of Antwerp in Belgium, with four separate tubes: Two for road traffic, one for cyclists, and one for trains.

[5][6] The bicycle tube is 4 meters (13 ft) wide, and pedestrians are allowed.

While shared-use tunnels are not strictly cycling tunnels (i.e. having a shared lane, or a bike lane and footpath without a non-crossable physical separation), they are sometimes used as a cost-saving measure instead employing separate tubes for cyclists and pedestrians.

[13] Even when allowed,[14] normal road tunnels can be both dangerous and frightening for cyclists.

[13] Compared to cars, cyclists breathe in free air, are slower moving, and have both limited lighting and protection, resulting in an experience of loud noise, poor air quality and a feeling of disorientation.

[12] Railways are generally built with gentle gradients, which can make them well suited for repurposing as bikeways or rail trails.