Added a new section discussing the main forms of transportation bottlenecks. Bottlenecks impose delays and restrictions in the normal flow of transportation and can be related to infrastructure, regulations, or operations. A specific case study about landbridges is also provided.
![Main Transportation Bottlenecks | The Geography of Transport Systems](https://i0.wp.com/transportgeography.org/wp-content/uploads/transportation_bottlenecks.png?resize=900%2C511&ssl=1)