B737-700
Flight Crew Last 90 Days 158
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Aircraft; Chart Or Publication
After landing; we turned off on SG6 with ATC instructions to taxi via the Green 7. Both of us were surprised by the STR as we had never encountered this at ATL and immediately referred to our EFBs in order to find the appropriate STR.  The way the STRs are indexed; neither one of us could find the procedure.  We knew the previous aircraft was also instructed on the Green 7 so we followed them.  While still searching for the chart; ATL Tower called and told us the other frequency was looking for us.  We taxied without further incident on the new frequency.  I finally found the STR; but it wasn't from the index labelling.  The list does not have all the color codes for the associated runways. The STR we needed was titled: 'STR (from RWY 10 GOLD West; Red 7 and East and RWY 28'.  Trying to access 'Green 7' in a hurry with no knowledge of where to find it creates a very uncomfortable position. The STRs should be listed by runway only; or include all the color routes on the listing.  In addition add a comment on the 10-7 pages to expect STRs after arrival so they can be properly briefed.  The disadvantage to the EFB is only one chart can be displayed at a time; needing extra briefing time to decide which Pilot displays the appropriate chart for taxi in.
B737-700 Captain reported difficulty finding their assigned standard taxi route after landing at ATL; citing unintuitive indexing practices used in their EFB as contributing.