There is nothing unsafe about the "railfan" window. The subway administrators decided to have full width cabs in most and eventually all cars that have a cab so that conductors won't have to change cars bwetween stops that require opening up on different sides of the train. LIRR and MNR bought cars with full width cabs for similar reasoning - so that a conductor could work the doors on either side of the train form within a given cab, and not have to lean across seats that might be occupied or go to a different car.
Same holds true at the MBTA, starting with the 1962/63-made 01400s on the Red Line, and all rolling stock thereafter so that the attendant can open doors on either side safele without going down from one end of the car to another or going car to car which last happened with the Orange Line in 1981 and Blue Line 0500s a year learlier when the 01100s and 0500s (both sporting just a corner cabs) were retired and replaced with full cab cars too. The last time a corner cab operated on the Red Line was 1970 with the 1928-built 0700s.
Now on to NYC, yes, while the RFW is fuzzy, I have no issues whatsoever with full width cabs Im glad the M8s will have the full cabs just like the R44 thru R211 and M7s so that the engineer and conductors have more flexibility and freedoms too.
Same holds true at the MBTA, starting with the 1962/63-made 01400s on the Red Line, and all rolling stock thereafter so that the attendant can open doors on either side safele without going down from one end of the car to another or going car to car which last happened with the Orange Line in 1981 and Blue Line 0500s a year learlier when the 01100s and 0500s (both sporting just a corner cabs) were retired and replaced with full cab cars too. The last time a corner cab operated on the Red Line was 1970 with the 1928-built 0700s.
Now on to NYC, yes, while the RFW is fuzzy, I have no issues whatsoever with full width cabs Im glad the M8s will have the full cabs just like the R44 thru R211 and M7s so that the engineer and conductors have more flexibility and freedoms too.