|An ADOT traffic study recommends putting a signal light on State Route 69 and Main Street, Humboldt, and decreasing the speed limit to 55.|
After years of ongoing requests for a decrease in speed limit, traffic signal or roundabout at the intersection of Highway 69 and Main Street, Humboldt, an Arizona Department of Transportation traffic study has determined that a traffic signal is warranted.
"I think it's great. I've been trying to do this for 10 years at least, even before we became a town," Dewey-Humboldt Mayor Terry Nolan said this week.
The traffic signal warrant study of Sept. 24-26 at mile post 279 is not the first time the town has requested ADOT look at the intersection. A 2009 Road Safety Assessment ascertained no need for any changes other than trimming roadside vegetation, refreshing lane markings, and relocating advance street signage.
However, that study did state, "Current traffic volumes do not warrant a signal at this location, but it is anticipated that with future growth, it will eventually warrant a signal."
It also recommended that ADOT consider lowering the speed limit. The posted speed limit on Highway 69 is 65 mph and the posted speed on Main Street is 25 mph.
ADOT released its Dec. 9, 2013, draft report to D-H Town Manager Yvonne Kimball on Jan. 7, in which ADOT Transportation Studies Analyst Suzie Armstrong recommended, "with engineering judgment, that traffic signal control at SR 69 at Main Street, MP 279 in Dewey-Humboldt, Yavapai County, may be considered at this time."
This study counted the volume of intersecting traffic in four-hour, eight-hour, and three-hour (peak) periods. It also counted the number of interruptions of continuous traffic, where the volume of the major street is so heavy that traffic on the minor street suffers excessive delay or hazard. Interruptions were particularly heavy between 7:15-8:15 a.m. and between 3:30-7:30 p.m.
Nolan said one of his greatest concerns was school buses trying to navigate Main Street and the highway.
"All they have to do is think of the school buses and parents taking kids back and forth as well," he said.
Humboldt Elementary School and Bradshaw Mountain Middle School buses often pass through the intersection, pulling out onto Highway 69 heading either north or south, and making left turns from the highway onto Main Street. Traffic surveyors in the 2009 survey also stated they observed queuing of buses and other vehicles during school opening and closing periods.
Robert LaJeunesse, ADOT Prescott assistant district engineer, reported in an email to Kimball this past week, "Finalizing the study is just a formality and then we will start an Intergovernmental Agreement with the Town and CYMPO and then determine when we can program the design and construction."