Encyclopedia — Letter L
8 entries in Project Management & Project Controls beginning with L.
Last Planner System
A collaborative lean construction planning method where the people who will perform the work commit to what they can actually do, replacing top-down schedules with promises and weekly learning.
Lead Time vs Cycle Time
Two closely related flow metrics — lead time measures from customer request to delivery; cycle time measures from active work start to delivery.
Lessons Learned
The structured capture, validation, and reuse of project knowledge to compound organisational performance over time.
Lifting Plan (Rigging Study)
The engineered document that turns a crane lift from an ambition into a controlled operation — loads, radii, ground pressures, rigging, exclusion zones, and the named people accountable for each.
Linear Scheduling Method
A graphical scheduling technique tailored to linear and repetitive projects — highways, pipelines, tunnels, high-rise floors — that plots progress in space against time so production rates and crew interactions are visible at a glance.
Liquidated Damages
A pre-agreed contractual sum payable by the contractor for each day of delay beyond the contract completion date — a substitute for proving actual loss.
Load Shedding and Backpressure
Deliberately refusing or slowing work so a system degrades gracefully instead of collapsing — the difference between serving 90% of users and serving none.
Look-Ahead Schedule
A short-term, detailed schedule (typically 3–6 weeks) extracted from the master schedule and made constraint-free, used to drive day-to-day execution and crew coordination.
Frequently Asked Questions
What encyclopedia entries are listed under the letter L?
8 project management and project controls entries beginning with L, including Last Planner System, Lead Time vs Cycle Time, Lessons Learned. The full A–Z reference is at the PMMilestone Encyclopedia.How are letter-paginated encyclopedia pages organised on PMMilestone Research & Insights?
Each letter page lists every entry whose primary term starts with that letter, sorted alphabetically. Entries are research-grade — definition, principles, applications, related entries and FAQs — written by Dr. Hassan Eliwa, PhD, Founder of PMMilestone.org.Which calculators and templates pair with letter L entries?
Most entries cross-link to companion tools on the flagship platform — the EVM Calculator, SPI Calculator, CPI Calculator, Schedule Health Checker and Risk Register Template. Each individual entry FAQ block names the specific calculator that applies.Where can I look up a one-line definition instead of the full encyclopedia entry?
Use the PM Glossary on PMMilestone.org for single-line definitions. The encyclopedia here is the long-form, citation-grade reference.