Simplify the following text for a Grade 10 native English-speaking person.
Original: Suburban Station was a stub-end terminal station with 8 tracks and 4 platforms until the Center City Commuter Connection project extended four of those tracks eastward to the new Market East Station , widened two of the existing platforms , realigned the tracks and added a fifth platform .
Simplified: Suburban Station originally had eight tracks and four platforms , until the Center City Commuter Connection extended the tracks to the newer Market East Station . It also added another platform .