B757-200
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Inflight Event / Encounter CFTT / CFIT
Flight Crew Took Evasive Action
Aircraft; Human Factors
During descent into LAS on Tyssn2 arrival; ATC kept us up high for traffic and after clearing this traffic; I started a descent after we were cleared direct to SHAND intersection for a visual approach to LAS. We received a 'Caution Terrain and a Pull Up' audible while having all terrain and runway in sight. I observed the 'Pull Up' by applying power and climbing. We both felt like we were well clear of terrain and the cautions were a predictive vector message from GPWS. We continued with a stable approach and landed uneventfully.At night in mountainous terrain; it would be safest to fly the arrival in its entirety and adhere to the published altitudes.
A B757 Captain reported receiving a GPWS terrain alert on a night visual approach to LAS even though he felt he was clear of terrain.