Ride-hail and delivery giant Uber is introducing cheap, fixed-route rides along busy corridors during weekday commute hours in major U.S. cities — one solution to a world that feels, for most people, more expensive every day. Starting Wednesday, riders in Baltimore, Boston, Chicago, Dallas, New York City, Philadelphia, and San Francisco will be able to save 50% off the price of an UberX trip by booking with Uber’s new “Route Share” feature. The company announced Route Share and other new feature...