Executive summary of Frost & Sullivan’s latest analysis of the Western European Urban Rail Market for Rolling Stock Systems. Automated people movers (APMs) are the fastest growing urban rail segment while light rail has the majority of infrastructure projects. After a decade of flurried development, growth in light rail systems is stabilizing as most municipalities have installed light rails. Though the number of light rail projects is decreasing as compared to the previous decade, light rail still has the maximum number of greenfield projects. APMs represent the fastest growing segment and will have increased their presence by more than three times in 2021.