>>970955A strong interest in trains is a red flag for autism though. Trains run only along the same path so their movement is comfortable and familiar for those with autism. Trains can be easily catagorised and the ability to organize objects into categories is very appealing for those on the spectrum. Trains also come with schedules. This, too, appeals to many people with ASD and is in line with a need for predictability and the inclination to memorize and recite information. Plus, trains have features that can support an enduring and developing interest across a lifetime. For instance, many children – including children on the spectrum – love the train characters in videos and TV shows such as Thomas the Tank Engine and Chuggington. For older children, model trains can be fun to build and have mechanical features that can be interesting to take apart and reassemble.