I've received a regular question or two on the possibility of Purple Line trains stopping at the Sheridan station during three tracking. Our Vice President for Planning provided me with the following response to the question:
"Only a very, very small portion of the boardings in the AM rush at Belmont and Fullerton (one to two percent) would shift their travel to use the Sheridan stop on the Purple Line--and there would be no significant benefit to customers at the crowded Belmont and Fullerton stations. Additionally, while some riders using the Sheridan stop might benefit by waiting for a Purple Line train, the Purple is running on a 15-minute headway, making it likely that most customers will choose to travel to Belmont to catch either a Brown or the first Purple Line train instead. Finally, a stop at Sheridan would delay the over 5,200 Purple Line through-travelers (who are the vast majority of Purple Line customers) and present them with even longer travel times in an already choked corridor with other inherent delays and slow-zones.
Given that the vast majority of passengers in the Brown Line corridor would not benefit from such a change, and the potential slow down in service for the majority of our customers, I do not recommend that CTA stop Purple Line trains at Sheridan during three track operations."
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