Imagine if ... public transportation connected the Hudson line, Harlem line and New Haven line of the Metro-North Railroad

Imagine if ... a light rail ran along Route 35 in Westchester connecting three branches of the Metro-North Railroad lines:  the Hudson line, the Harlem line and the New Haven line.  

The light rail would stop at the Peekskill train station on the Hudson line, the Katonah train station on the Harlem line, and the Branchville, CT train station on the New Haven line.  

Additional stops would be made along the way in Yorktown, NY and Ridgefield, CT.  

What do you think?
Would you ride on this if it existed?
Is there another place you think a light rail connection would help?
All thoughts, comments appreciated!!

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