Narrative:

In ewr; upon taxi out we received the instructions from ramp control to taxi B short of K and contact ground. Upon contacting ground control they instructed us to taxi B short of east for [runway] 4L; we complied and continued taxiing. We were then issued new instructions to taxi south; a then PA to runway 4L. I taxied right on to what I thought was south; but after making the turn we both noticed that we had actually turned onto taxiway rg instead. We then made the left turn onto a and continued on our instructions without further incident and ground control did not comment on any wrongdoing. I believe the taxiway confusion first began with the initial change from getting a new taxi route from ATC to join a from parallel B. Usually going to [runway] 4L; the aircraft would be given taxiways B to D; but with taxiway construction; parts of B and D were unusable. More importantly though were the very confusing taxiway signage located at the intersections of taxiways B; south; J and rg; where they have a direction sign for south that looks like it is actually pointing toward taxiway rg; which had caused most of the confusion on my part.

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Original NASA ASRS Text

Title: An air carrier Captain cleared to taxi EWR Taxiways B; S; A; to Runway 4L; turned onto RG then A because the signage at the intersection of Taxiways B; S; J; RG misleads one to see RG as S.

Narrative: In EWR; upon taxi out we received the instructions from Ramp Control to taxi B short of K and contact Ground. Upon contacting Ground Control they instructed us to taxi B short of E for [Runway] 4L; we complied and continued taxiing. We were then issued new instructions to taxi S; A then PA to Runway 4L. I taxied right on to what I thought was S; but after making the turn we both noticed that we had actually turned onto Taxiway RG instead. We then made the left turn onto A and continued on our instructions without further incident and Ground Control did not comment on any wrongdoing. I believe the taxiway confusion first began with the initial change from getting a new taxi route from ATC to join A from parallel B. Usually going to [Runway] 4L; the aircraft would be given Taxiways B to D; but with taxiway construction; parts of B and D were unusable. More importantly though were the very confusing taxiway signage located at the intersections of Taxiways B; S; J and RG; where they have a direction sign for S that looks like it is actually pointing toward Taxiway RG; which had caused most of the confusion on my part.

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.