LA Metro Crenshaw/LAX


The $1.2 billion Los Angeles County Metropolitan Transportation Authority (Metro) Crenshaw/LAX Transit project (Crenshaw) is an 8.5-mile, double-track guide way light rail. The route passes through residential neighborhoods, crosses an interstate highway, and impacts major roads. There are eight stations and a mixture of at-grade, street-running, aerial, and underground sections.

PMA was hired to provide an independent analysis of the Walsh-Shea Corridor Constructors JV (WSCC) construction schedule. The scope required PMA to provide a project schedule assessment, identify schedule-related issues, assess schedule float, review schedule contingency status, and recommend schedule mitigation plans. PMA interviewed staff from Metro and WSCC, toured the project site, reviewed extensive project records, attended project meetings, and thoroughly analyzed the project schedule.

PMA first analyzed WSCC’s 10,551-activity Primavera P6 schedule and identified known impacts that were not in the schedule, demonstrating that eight months of time contingency were in danger of being consumed at less than 15% construction completion. PMA then worked with the teams to develop a risk register, which was used in a facilitated, collaborative risk workshop with the contractor and Metro staff. As part of this process, PMA staff consolidated WSCC’s schedule to an approximately 200-activity schedule risk model using PMA’s proprietary software, NetPoint, with its superior ability to explain the schedule and run “what-if” scenarios. PMA then modeled risks in OPRA to determine probable completion dates and facilitated a mitigation workshop with the contractor and with Metro to brainstorm how best to mitigate delays to meet the revenue service date. PMA also created a risk assessment report that summarized its findings and made recommendations to help improve the probability of project success.