Sharraxaadda

Please explain why pedestrians aren't able to have a walk signal in order to cross both roadways separating us from Charles Street and the Charles/MGH subway station? Right now we have to wait on the island for the light to change for the 2nd walk signal. As a result I observe numerous pedestrians too impatient to wait crossing the street even when traffic is bearing down on them. I can imagine the level of impatience grows as the weather turns inclement which is not a safe situation. Please program the lights so that all traffic stops for pedestrians to safely cross the streets.