Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Became Reoriented; Flight Crew Requested ATC Assistance / Clarification
Airport
During my recent 3 day sequence; on two separate occasions I witnessed aircraft incorrectly holding short or attempting to hold short of 17R at DFW in between taxiways EG and EH.  The first time; we were the 3rd aircraft in line on taxiway L when Tower cleared the first Company X aircraft on L about to make the turn onto EH for takeoff.  That aircraft informed Tower they didn't think they had enough room to do so because there was a Company Y aircraft on their left holding short and there was a Company X aircraft holding short on EG.  After much confusion; Tower cleared the EG aircraft for takeoff to clear the area and then Company Y aircraft was cleared for takeoff.  The second time was today.  We were taxiing on L when the one aircraft in front of us was cleared for takeoff.  As I was about to make the turn onto EH; I stopped because another company aircraft had turned short of EG and was taxiing toward 17R to hold short to the right of an aircraft already holding short on EG.  When the short turn company aircraft saw I had stopped and Tower had scolded me to hurry up and make the EH turn for takeoff; that aircraft stopped.  I then turned and proceeded to takeoff.  I think what is happening is Captain's taxiing to 17R are expecting to see 3 hold short points at EG; EH; EF with 3 aircraft holding short side-by-side.  However; EF is currently closed for construction.  They mistakenly think the last hold short point is EF; but that is actually now EG.  To deepen the trap; I think they are also seeing the painted EG taxi box in the hold short area which they must think is pointing them to an EG hold short point even though there is no taxi line there to 17R.  The painted EG taxi box is intended to direct aircraft on L to start their turn there onto EG.  Both instances were disconcerting and after seeing it happen twice in as many days.  I think this pitfall needs to be shared with others.  I think a short warning message about this to pilots might be helpful and possibly a temporary DFW hotspot be implemented.
Air carrier Captain reported construction related taxiway markings confusion at DFW airport in the vicinity of Runway 17R and taxiways EG; EH; EF.