Date: 201506
Local time of day: 1801-2400
Location: LRD.Airport, TX
Flight conditions: VMC
Light: Night
Aircraft: Medium Transport; Low Wing; 2 Turbojet Eng
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Taxi
ATC / advisory: Tower LRD
Reporter organization: Air Carrier
Reporter function: Pilot Not Flying; Captain
Human factors: Workload; Situational Awareness; Confusion; Distraction
Second reporter function: First Officer; Pilot Not Flying
Anomaly: ATC Issue All Types; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Detector: Person Flight Crew
When detected: Taxi
Result: Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Contributing factors: Procedure; Human Factors; Chart Or Publication; Airport
Primary problem: Airport

Narrative: Prior to landing in LRD we briefed landing on RWY 17R and the taxi to the gate. We discussed how the terminal ramp was located on the east side of the airport and we would need to either turn left on Taxiway D or at the end of the runway on F and cross two runways either way to get to the ramp.The First Officer (FO) was flying and landed on RWY 17R by way of an ILS in visual conditions uneventfully. As we slowed; the tower directed us to turn left of D; cross RWY 14 and 17L to the ramp. At this point I took control of the aircraft and the FO read back the instructions to the tower. We turned left onto D and we both visually cleared and confirmed with each other that we were cleared to cross RWY 14. As we crossed RWY 14; I asked to FO to confirm we were also cleared to cross RWY 17L. It took the tower a minute to respond; at which time we came to a stop. The tower then confirmed that we were cleared to cross RWY 17L as well. As we approached the intersection of D and RWY 17L; the taxi line for D stopped going straight and made a 90 degree turn to the North and an angled turn to the right. With the crown of the runway I could not see if taxiway D did in fact continue straight ahead and it appeared to be just the runway edge and grass in front of us. I slowed the aircraft to creep and the FO and I both tried to visually verify the correct direction to go. At this time the tower was continually talking to other aircraft; clearing them for landing. At this point I determined the safest thing to do was to follow the yellow taxi line that veered to the right. I was soon able to identify taxiway J by the signage and turned left onto J and then taxied to the gate via J and H. Reviewing the airport diagram we must have inadvertently turned onto RWY 14 instead of continuing on D.Potential threats that lead to this event are the confusing intersection of two runways and a taxiway along with the close proximity of a third runway; the lack of it being identified as a hot spot on the airport diagram; and the lack of the taxiway D yellow line continuing across runway 17L. The fact that this event was at night was a major contributing factor. Lastly; the tower being busy with other aircraft and unavailable for clarification of our location was also a factor.We should have briefed the complex intersection in more detail before landing. As a captain I should have also not continued taxing without being sure of my location and just waited on the tower to help us verify.


Second narrative: It was night which was a major factor. It was also not listed as a hot spot on the airport diagram I also should have been following the taxi on the diagram more attentively.I should have been following the taxi closer and slowed down. A hot spot would help on the airport diagram.


Synopsis: An air carrier crew landed on LRD Runway 17R and were cleared to exit at Taxiway D; cross Runways 14 and 17L to the ramp. When the Taxiway D centerline turned right the crew followed it because at night it appeared D ended at 17L and turned. They actually turned on Runway 14.