How a shuttle bus for airport luggage became the standard American city transit vehicle

Countries & Cities · Published 15 October 2026 Swipe more like this →

In short: The Gillig Low Floor began as a specialized airport shuttle designed for passengers with heavy bags. Today, it is the dominant transit bus in the United States. From its humble origins in the mid-1990s, the platform has evolved through five distinct body styles and multiple complex powertrain technologies.

The Gillig Low Floor originated in the mid-1990s when the Hertz Corporation requested a shuttle to replace its aging fleet at airport locations. The primary requirement was a low-entry design to assist travelers with luggage and those with limited mobility. By 1996, the first units, known as the H2000LF, were operating at Boston's Logan International Airport. In 1997, Gillig adapted this shuttle into a transit bus, reconfiguring the entry doors to a dual-door layout and marketing it alongside the company's traditional high-floor Phantom model. The Low Floor eventually replaced the Phantom entirely by 2008.

Structurally, the bus is classified as a low-entry vehicle. Most of the interior floor is kept at a low level, near curb height, to facilitate easy boarding via an integrated manual ramp. The rear section, however, is raised to accommodate the powertrain components. Over the decades, the design has seen numerous revisions, including changes to window configurations, windshield size, and the introduction of specialized variants like the BRT, BRT Plus, and the vintage-styled Trolley Replica. The suburban configuration, introduced in 2008, removed the rear door to prioritize forward-facing seating and amenities like Wi-Fi.

The platform has been a testbed for diverse propulsion systems. While conventional diesel and compressed natural gas engines remain standard, Gillig has integrated hybrid, battery-electric, and trolley-style technologies. Notably, the company partnered with Kiepe Electric to create trolleybuses for Dayton, Ohio, featuring in-motion charging that allows buses to operate off-wire for up to 20 miles. In 2019, Gillig launched a fully electric model, and in 2024, the company announced a hydrogen fuel cell variant scheduled for production in 2026. These advancements reflect a broader industry shift toward diverse energy sources, moving far beyond the simple shuttle bus design that started it all.

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