A Liddy light refers to the center high-mounted brake light found on automobiles, an important safety feature designed to enhance visibility for following drivers.
The Origin and Purpose of the Liddy Light
The term "Liddy Light" became widely known due to the advocacy of Elizabeth Dole, who served as the U.S. Secretary of Transportation. During her tenure, she strongly championed the installation of these central, elevated brake lights on new automobiles. This measure was considered a key safety enhancement, as it provides an additional, highly visible signal that a vehicle is braking, often positioned within a following driver's direct line of sight above the regular taillights.
Mandated by the National Highway Traffic Safety Administration (NHTSA), these lights have significantly contributed to reducing rear-end collisions.
Key Characteristics
Liddy Lights, officially known as Center High-Mounted Stop Lamps (CHMSL), possess distinct characteristics that set them apart from traditional brake lights:
- Elevated Position: Unlike standard brake lights typically integrated into the tail lamp assemblies, Liddy Lights are mounted higher on the vehicle, usually in the center of the rear window or on the trunk lid. This elevated position makes them more prominent, especially in traffic.
- Safety Enhancement: Their primary purpose is to provide an earlier and more noticeable warning to drivers behind, allowing them more time to react and reducing the likelihood of rear-end accidents. Studies have shown their effectiveness in preventing collisions.
- Standard Equipment: Following the NHTSA mandate, Liddy Lights became a standard safety feature on all new passenger vehicles sold in the United States.
Overview of Liddy Lights
| Feature | Description |
|---|---|
| Common Name | Liddy Light |
| Technical Name | Center High-Mounted Stop Lamp (CHMSL) |
| Function | Illuminates when vehicle brakes are applied, signaling deceleration. |
| Placement | Center, high on the rear of the vehicle (e.g., rear window, trunk lid). |
| Championed By | Elizabeth Dole, former U.S. Secretary of Transportation. |
| Mandated By | National Highway Traffic Safety Administration (NHTSA). |
| Primary Benefit | Reduces rear-end collisions by improving brake signal visibility. |
The Liddy light stands as a testament to the continuous evolution of automotive safety, spearheaded by visionary leaders like Elizabeth Dole, whose efforts have made roads safer for millions.
