Virginia Department of Transportation
Original Post June 11, 2008
Revised Post October 1, 2008

To Supervisor Baker and Hobbs:
Why haven't you requested another speed study for Virginia Heights Road? Crickett Lane has a posted speed limit of 35 and that request was made at the same time as the Virginia Heights Road request. The initial VDOT response was that Crickett Lane didn't need a speed limit but it looked like Virginia Heights did; pending an official study which would be completed in a couple of months. All of this took place in 2005.
Why are there speed limits?
Speed regulations and speed limits are intended to supplement motorists' judgment in determining speeds that are reasonable and proper for particular weather and road conditions. Limits are imposed to assist enforcement personnel and to promote better traffic flow by reducing the wide variance in speeds.
How are speed limits determined?
Factors considered in determining reasonable and safe speed limits are categorized into two phases: the engineering investigation and the traffic investigation.
The engineering investigation involves a study of the geometric design of the road.
Engineers review such items as:
*Lane width
*Pavement type and condition
*Terrain
Engineers also look at:
*Parking conditions
*Commercial and residential development along the road
*The number, width and types of entrances and intersecting streets
The traffic investigation involves gathering and analyzing traffic-related data. Engineers study:
*Prevailing vehicle speeds
*Average test runs
*Traffic volumes
*Accident experience
*Traffic control devices that affect or are affected by vehicle speeds
Federal legislation enacted in 1995 gave individual states the authority to establish their own maximum speed limits. Prior to the 1995 law, federal law required that the maximum speed limits on interstate highways be 65 mph for rural interstates and 55 mph for urban interstates.
For the most part, Virginia has chosen to follow those guidelines.
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Now you understand how speed limts are established by VDOT. Why is it so difficult to get these speed limits studied and established in a timely manner?
Example: A speed study for Virginia Heights Road was requested in 2005. Finally in 2007 VDOT reported to the Board of Supervisors that a speed limit wasn't needed on Virginia Heights Road, primarily due to the fact that no accidents had been reported on the road.
This road is a mere 18 feet wide and less than one mile in length. The road is intersected with 4 state-maintained streets and 19 private driveways. A total of 33 houses and 11 house trailers are located on this road, as well as one very busy bed and breakfast and 18 homes that use Virginia Heights Road as their only ingress and egress to their subdivision. Water-line breaks seem to be a frequent problem along this road and naturally the repairs involve trucks and other equipment that partially block the road. Water meter reading along this road also requires vehicle stops that impede traffic flow. A significant number of pedestrians attempt to walk along this road, including students who walk to and from Giles High School. Some very brave people ride their bicycles on this road and place their lives in the hands of drivers who must dodge oncoming vehicles while also attempting to avoid collisions with the bicycle and rider. Postal delivery and newspaper delivery is provided by automobiles that must stop ON the road and place these items in their appropriate receptacle. All of this activity on a road less than one mile in length yet a speed limit isn't necessary?
A reasonable speed limit on Virginia Heights Road is a maximum of 35 mph. Current traffic often exceeds 35 mph and by doing so the driver increases the risk of having the first accident to ever be reported on this road.
Two members of the Board of Supervisors have been requested to get a speed limit posted on this road. That request was first made in 2005 but to date the supervisors haven't had any positive influence on VDOT to post a speed limit. However, one of the supervisors was able to get a speed limit of 35 mph posted on Crickett Lane after the 2005 request for a speed limit on Virginia Heights Road. The other supervisor was able to get a speed limit of 25 mph posted on Hillcrest Road, which is about 400 feet long and difficult to attain a speed of 25 mph and still be able to come to a stop before reaching the end of the 400 foot road. How many accidents or deaths were reported on Crickett or Hillcrest to justify a posted speed limit? Oh yes, there are other factors considered prior to VDOT posting a speed limit but remember, the VDOT representative most always refers to the lack of enough accidents or deaths.
What has happened to the common-sense approach to problem solving? Apparently, it has been replaced and debased by the sophistication of technology, the influence of those who think every issue must be subjected to numerous studies before a decision can be made, and the many layers of management who have responsibilities that overlap each other.
It took me less than one hour to measure the width of Virginia Heights Road, monitor traffic flow, count the number of homes along the road, count the number of streets and driveways intersecting the road, perform a cursory inspection of the road condition, and drive the road at varying speed limts from 25 to 55 mph. After performing these tasks, it was very obvious to me that a maximum speed limit of 35 mph was appropriate and necessary for this road. It took VDOT 2 years to do all of this and then incorrectly conclude that a posted speed limit isn't needed. Could this be one reason that VDOT's costs are so excessive and a contributing factor to why they don't receive more state money for our road projects?
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Stay tuned for more examples of how VDOT is either helping Giles County, or failing to help Giles County.