Traffic Division

The Traffic division of the City of Victorville Engineering Department is responsible for the analysis of traffic flow, traffic congestion and collision reports throughout the city and Traffic Signals. 

If you are doing any type of work within the public right-of-way, including City funded projects, you must submit a traffic control plan to the Traffic Engineer for his approval. All traffic control plans must conform to our Standards for Temporary Traffic Control.

Some of the significant functions performed by the traffic division include:

  • Citizen concerns/requests - respond , conduct traffic investigations
  • Speed zone surveys - determine speed limits
  • Traffic count program - for arterial streets and intersections
  • Accidents monitoring- traffic collision database
  • Traffic Advisory Committee - reviews new signals, stop signs, speed zones, parking zones, policies, etc.
  • Traffic policies - review and recommend changes through Traffic Advisory committee and City Council
  • School area safety - participate with school to improve safety, recommend changes in signing , striping, and traffic control devices
  • Traffic signals- signal timing modifications and new signals
  • Traffic signal coordination systems - monitor and adjust timing - Bear Valley Road, Palmdale Road, 7th Street, and Roy Rodgers Drive
  • Traffic control plans - review for construction activity
  • Oversize load permits -restrict routes and time of travel
  • Development review - conditions of approval , site access, circulation, plan check for signing , striping, and traffic signals
  • Traffic studies - review for impacts and required mitigation such as new traffic signals
  • Congestion Management Program (CMP) - monitor and mitigate congested roads
  • City traffic forecast model - determines number of lanes for roads and intersections for master-planned streets
  • General plan circulation map - recommend changes for future needs

Oversize load permits are reviewed by the Traffic division for issuance by the Administrative section. Please call 760.955.5158 for issuance of your permit.

Traffic Counts

Archive Counts

 

Questions You May Have


What exactly is a Traffic Engineering?

Traffic engineering is the science of measuring traffic and travel, the study of basic laws relating to traffic flow and generation, and the application of knowledge to the professional practice of planning, designing and operating traffic systems to achieve safe and efficient movement of persons and goods. 

Why does the City do so many different types of traffc counts?

Traffic volume studies are made to obtain factual data concerning the movement of vehicles and/or persons at selected points on the street system. Volume data are expressed in relation to time, the base being determined by the type of information desired and the application to which it is used. When doing a coordination study for weekend volumes, then a 7-day count will be ordered. Otherwise 24-hour counts are used since they are much less cost.

How does the City decide when to put traffic signals, yield or stop signs? 

For an uncontrolled intersection, that is no signals, yield or stop signs, vehicles must follow the standard right of way rule per Uniform Vehicle Code (UVC)Ref. 1 §11-401 that states "When two vehicles approach or enter an intersection from different roads at the same time, the driver of the vehicle on the left shall yield to the vehicle on the right." When this standard rule is insufficient, usually for safety reasons, then the intersection needs to get controlled. The level of control installed is based on criteria known as "warrants" regulated in the UVC and Manual of Uniform Traffic Control Devices (MUTCD). All intersections in California must abide by these warrants.

What are the warrants (criteria) for a yield sign?

The yield sign is used to protect traffic on one of two intersecting streets without requiring traffic on the other street to come to a complete stop. They are used on low volume roads where right-of-way rule at an intersection of a less-important road with a main road might not be readily apparent. Another reason might be where an intersection has restricted sight distance for the prevailing vehicle speeds.

How does the City decide when and where to install stop signs?

A two-way stop is used where one of the streets at the intersection is obviously more heavily traveled. The stop sign is placed on the lesser street to protect the traffic on the more major street. They are also placed where reliance on the standard right of way rule is unduly hazardous, as indicated by high speeds, high accident records, or restricted view. Prior to applying this "warrant", less restrictive measures, such as a yield sign, should be considered.

Why do the City have four-way stops?

The City tries to avoid four-way stops because of the great disadvantage of stopping all vehicles, thereby increasing unnecessary emissions of pollutants, consumption of fuel, and added noise. However, under certain special circumstances, four-way stop control may be suitable. These circumstances include where traffic signals are warranted and urgently needed but cannot yet get installed, when five or more accidents happen at an intersection within a 12-month period, and a formula based on vehicle and pedestrian volumes and where the approach speed on one of the streets exceeds 40 mph. 

How does the City decide when to install traffic signals?

While traffic signals can cost anywhere from $150k to $250k to install, depending on the intersection, cost is not usually a factor used to decide whether to make an intersection signalized. To install traffic signals for any intersection in California, the intersection must meet warrants as spelled out in the MUTCD. Vehiclular and pedestrian volume is the most common factor in most of the warrants. Other factors include speed control, accident records, proximity to a school zone, and traffic flow enhancement in progressive systems.

How do you decide what the posted speed limit should be?

Most of the posted speed limits in the City were derived from traffic studies conducted for that street. The study includes vehicle and pedestrian volumes, type of development along the roadway, such as certain types of businesses or residential, and speed surveys. Typically 85% of the traffic drives at a velocity that is less than or equal to a safe speed. So that 85th percentile speed is usually set as the speed limit, unless other factors warrant a lower speed, such as school zone, accidents and so on. Remember though the basic speed law, never drive faster than what is safe.

 

 Button-top

 
 
 
 
Department contacts

Brian Gengler
City Engineer
R.C.E. 44730
T.E. 1860

Anwar Wagdy
City Traffic Engineer
T.E. 1466
(760) 243-6350
E-mail Mr. Wagdy

Greg Heldreth
Junior Engineer
(760) 243-6360
E-mail Mr. Heldreth