The document provides information on monorails through a case study on the KL Monorail system in Kuala Lumpur, Malaysia. It begins with an introduction to monorails, describing them as transportation systems supported along a single rail or beam way. It then classifies different types of monorail systems based on their configuration and relationship to the beam way. The case study focuses on the KL Monorail, which opened in 2003, running 8.6 km on two elevated tracks and connecting major parts of downtown Kuala Lumpur. Key details are provided on its stations, rolling stock, and specifications.