Narrative:

Taxiing out; we were cleared to taxi by ground control. I noticed some debris blowing left to right after a B767 took off. I caught a slight motion from the left; and a E145 came barreling across the runway at an intersecting taxiway. I would describe this as a night-time blossoming effect of near collision; but on the ground (a first for me). I was able to smoothly but firmly brake to miss them and keep them from hitting us. They did not slow down at all; and I am unsure they even saw us. We then heard their crew contact ground; 'clearing ...'; and they were given instructions to taxi to their gate. Unfortunately with the focus on preventing an accident; neither of us caught the call-sign.with us stopped; trying to figure out what just happened; my first officer queried the controller that 'we were just cut off by that rj'. The controller did not offer any explanation; and simply instructed us to continue to taxi to the runway.our assessment was that someone missed the coordination between tower and ground control to inform us to give way. I estimate the rj was crossing approximately 30 to 40 kts. Groundspeed and accelerating. We were single engine; so unsure of our speed. Continuing the taxi; I asked the first officer to contact the purser to check on their condition. Fortunately; they were already in their jumpseats; with three of the four already strapped in and the fourth sitting. The purser informed him that it was a smooth albeit sudden stop; and all passengers were safely in their seats.

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Original NASA ASRS Text

Title: A Flight Crew reported they had to make a sudden stop to avoid conflicting taxiing aircraft.

Narrative: Taxiing out; we were cleared to taxi by Ground Control. I noticed some debris blowing left to right after a B767 took off. I caught a slight motion from the left; and a E145 came barreling across the runway at an intersecting taxiway. I would describe this as a night-time blossoming effect of near collision; but on the ground (a first for me). I was able to smoothly but firmly brake to miss them and keep them from hitting us. They did not slow down at all; and I am unsure they even saw us. We then heard their crew contact Ground; 'clearing ...'; and they were given instructions to taxi to their gate. Unfortunately with the focus on preventing an accident; neither of us caught the call-sign.With us stopped; trying to figure out what just happened; my First Officer queried the Controller that 'we were just cut off by that RJ'. The Controller did not offer any explanation; and simply instructed us to continue to taxi to the runway.Our assessment was that someone missed the coordination between Tower and Ground Control to inform us to give way. I estimate the RJ was crossing approximately 30 to 40 kts. groundspeed and accelerating. We were single engine; so unsure of our speed. Continuing the taxi; I asked the First Officer to contact the purser to check on their condition. Fortunately; they were already in their jumpseats; with three of the four already strapped in and the fourth sitting. The purser informed him that it was a smooth albeit sudden stop; and all passengers were safely in their seats.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.