okay one last time with streetcar systems grade separation is the exception for light rail systems it is the rule for streetcar systems multi car trainsets are very much the exception for light rail systems it is the rule for streetcar systems wide regional applications are the exception for lightrail systems it is the rule for streetcar systems high speeds mph are as a rule not acheivable or desirable because they run on low speed streets for light rail systems high speeds are desired and acheived wherever possible for streetcar systems vehicles generally carry fewer than people for light rail systems trainsets generally carry more than people streetcars generally resemble what have been called streetcars since the th century light rail generally resembles what has been called light rail since the s i could go on and on and on but i already have why can you not perceive the difference between these things apr utc