Railways AC local trains get uncool response On Day-1, only 22 passengers travelled on CSMT- Kalyan AC local; Worried CR plans to study commutersâ views To find out why air-conditioned local trains, introduced by the Central Railway (CR) on CSMT and Kalyan sections have not garnered a favourable response, railway officials have set out to survey to understand whether commuters are aware of AC locals and to know their point of view. The survey comes a day after only 22 passengers travelled in the AC local between CSMT and Kalyan on Day 1. The CR had launched ten AC local train services for the first time on the CSMT-Kalyan section on Thursday.