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So far PEimpact JH has created 75 blog entries.

The Rise and Fall of the Airbus A380: A Lesson for Professional Engineers

The A380 was designed to be a game-changer in the aviation industry. Boasting a double-deck, wide-body, four-engine jet configuration, it had a typical seating capacity of 555 passengers in a three-class configuration and could transport over 800 passengers in a denser configuration. The goal? Address the problem of congested airports and airspace by carrying more passengers per flight.

By |2023-11-06T10:49:24-06:00November 6th, 2023|Tuesday Tidbits|3 Comments

Lessons Learned: The 1999 Aggie Bonfire Collapse

The Aggie Bonfire was more than a mere bonfire; it was a towering structure of log stacks reaching nearly sixty feet high, an emblem of Aggie spirit and camaraderie. The collapse, which occurred during construction, was a shocking tragedy that deeply affected the University and the broader community.

By |2023-10-23T09:35:30-06:00October 26th, 2023|Friday Famous Failures|3 Comments

Releasing Radioactive Water from Fukushima: An Engineering Perspective

In 2023, Japan made the monumental move to begin releasing treated radioactive water from the Fukushima Daiichi nuclear disaster into the ocean. The decision was mired in controversy, met with both support and opposition from international bodies, neighboring countries, and environmental groups.

By |2023-10-02T13:11:04-06:00October 2nd, 2023|Tuesday Tidbits|5 Comments

Lessons Learned: The Denver International Airport Automated Baggage-Handling System

The Denver International Airport (DIA) is renowned for its iconic tent-like structure, but it is also infamous in engineering and project management circles for its ambitious yet flawed automated baggage-handling system. This system, which was intended to revolutionize the airport industry, instead became a case study in the pitfalls of over-ambitious engineering and poor project management.

By |2023-09-21T15:07:56-06:00September 28th, 2023|Friday Famous Failures|8 Comments

The March Ethical Dilemma: Sometimes Silence is Golden

Engineer Russell offers a homeowner inspection service in which he performs an engineering inspection of residences by prospective purchasers. Following the inspection, Russell renders a written report to the prospective purchaser.

By |2023-06-27T16:10:28-06:00March 20th, 2023|Ethical Dilemma|16 Comments

The February Ethical Dilemma: Can a Proposal Be Too Detailed?

A village board made known its interest in receiving what it called “proposals” in connection to a contemplated water project, with an estimated construction cost of $500,000, to be financed in part with funds under a federal-aid program.

By |2023-06-27T16:10:45-06:00February 17th, 2023|Ethical Dilemma|25 Comments

Smart Traffic Lights

Smart traffic lights are internet-connected vehicle traffic control systems capable of adapting traffic light activity based on information from sensors, edge devices, and video systems. They create a more intelligent traffic management system that reduces congestion and travel times, improves safety, and reduces carbon emissions.

By |2023-02-17T11:55:10-06:00February 6th, 2023|Tuesday Tidbits|2 Comments

The Minnesota I-35W Bridge Collapse

The I-35W Bridge was designed by the engineering firm Sverdrup & Parcel, with the blueprints receiving final certification in 1965. The structure complied with the 1961 standards of the American Association of State Highway Officials (AASHO) and the 1964 standards of the Minnesota Highway Department.

By |2023-06-27T16:23:50-06:00January 26th, 2023|Friday Famous Failures|12 Comments

The January Ethical Dilemma: Referring Work to a Former Firm

Engineer Albert, principal in ABC Engineers, P.A., retires and sells his stock to ABC. He takes a 25% down payment with the remaining balance to be paid over a period of five years. After retirement, he offers his services to various clients as an advisory consultant—one who is not involved in design or planning, but rather assists them in decision-making.

By |2023-12-22T14:33:42-06:00January 16th, 2023|Ethical Dilemma|24 Comments