Final answer:
On a one-way street in the United States, the broken lane marker is typically white, according to the MUTCD. These white markers help direct traffic and maintain safety on the roads.
Step-by-step explanation:
On a one-way street, the broken lane marker color is white. In the United States, the Manual on Uniform Traffic Control Devices (MUTCD) specifies that pavement marking lines that separate lanes of traffic moving in the same direction, such as on a one-way street, are generally white. This helps in indicating to drivers the appropriate lanes for driving and for overtaking when necessary.
It's important to note that these markers serve as guidelines for lane designation and help maintain road safety. Different countries may have different standards, but in the U.S., white is the standard color for these road markings. One must always pay attention to road signs and markings to ensure adherence to traffic laws and safe driving practices.