PBOT Road Sign R4420 (Oregon) T-Shirt: Design Overview

This t-shirt features the design of the PBOT Road Sign R4420, a regulatory traffic sign used in Portland, Oregon. The artwork directly replicates the official sign, making it instantly recognizable to those familiar with Portland's roadways.

Visual Elements & Symbolism

The design adheres to the standard format of a regulatory sign: a black legend on a white rectangular background. The primary message, “NO TURN ON RED,” is clearly displayed in bold, sans-serif lettering, emphasizing the prohibition for motor vehicles. Below this, the words “EXCEPT BICYCLES” signal the exception to the rule, creating a clear visual distinction.

The simplicity of the design, with its high contrast and clean lines, ensures instant readability and understanding. The sign's purpose is to communicate a specific rule of the road regarding right turns on red lights, a rule that prioritizes bicycle traffic in locations where "bike boxes" are present.

Meaning & Interpretation

The design, through its use of official road sign imagery, carries with it the authority and meaning of a legal traffic regulation. The "NO TURN ON RED" statement acts as a direct prohibition, while the "EXCEPT BICYCLES" phrase communicates that bicyclists may be granted the privilege to turn right on red in certain situations. The design serves as a visual reminder of the rules governing right-of-way in areas designed to provide a safe and effective route for bicycle traffic.