If you think of the "bridge" as being the total area of the ship given over to communicatiosn, command and control functions, then it was much larger than most people realize. In terms of the area which was under the direct supervision of the senior officer of the watch, the "bridge" extended 90 feet port to starboard, and nearly 250 feet for and aft.
What is completely overlooked is the distance from the forebridge to the standard compass platform. That platform was an integral part of bridge operations. IMM/White Star regulations required that a junior officer visit the platform every 30 minutes (8 times per watch; 48 times per day) to check the steering compass against the standard compass. On many of those visits, the junior also "shot" azimuths to check the accuracy of the standard compass.
In addition to the standard compass, the two chart rooms were also part of the "bridge." The one for officers was behind the wheelouse, while Captain Smith had a separate room which was also used for this purpose.
All-in-all, Titanic's rather cumbersome layout that made it virtually impossible for the senior officer of the watch to maintain proper bridge management. On the night in question, Murdoch was pretty much alone and out of touch with the information he needed to make better decisions.
The wireless office was also part of the "bridge" in that it was a vital part of communications. There is some evidence of both the wireless operators (Bride in particular) taking messages to the forebridge and of officers bringing messages to Captain Smith.
The physical layout of the forebridge and wheelhouse also created problems. The senior officer was isolated from sight or sound of what was occurring inside the wheelhouse. For instance, he could not hear the "click" of the telemotor pump each time the quartermaster brought the wheel through dead center.
Placement of the telephones made it necessary for the senior officer to leave the forebridge and go inside the wheelhouse to use them. This meant that the forebridge was devoid of an officer performing lookout while the call was being made. That it was standard practice for the senior officer to leave the forebridge is one implication of Lightoller's testimony about listening to Moody phone instructions to the lookouts. Lightoller could not have heard those instructions unless he was virtually inside the wheelhouse. So, while correcting Moody, Lightoller was not performing his primary job of looking out for dangers around the ship.
-- David G. Brown