Deaf / Blind Child Area Sign Policy
To establish criteria for the installation of Deaf and Blind Child Warning signs (W15-10).
The Manual does not establish any criteria for the installation of these warning signs. Therefore, the Washtenaw County Road Commission is establishing its own criteria for the installation of these signs.
- A resident living on a street or road under the jurisdiction of the Washtenaw County Road Commission, who wishes to have a Deaf or Blind Child warning sign installed must submit a written request to the Washtenaw County Road Commission. The following criteria apply:
- The hearing and/or visually-impaired child for whom the sign(s) are to be installed must be under eighteen years of age.
- Written verification of the child’s hearing problem and/or documentation stating the child is legally blind must be received from a school official or a licensed physician.
- If the above criterion is met, a sign will be installed at the direction of the Washtenaw County Road Commission. The following guidelines will be followed:
- The Deaf and Blind Child warning signs shall be placed according to the procedures established in the Michigan Manual of Uniform Traffic Control Devices.
- In the case where the child is confirmed to having both a hearing and visual impairment a “Deaf Child” sign will be chosen for installation.
- The sign placement will be reviewed at least every two years to insure that the above criterion is still being met.
Placement of Deer Crossing Signs
To establish guidelines to be followed when considering installation and placement of Deer Crossing signs (W11-3).
The Michigan Manual of Uniform Traffic Control devices lists Deer Crossing signs. However, it does not provide criteria for the installation and removal of these signs. Therefore, Washtenaw County Road Commission is defining criteria to be used in the installation and removal of Deer Crossing signs.
A deer-car accident history should be researched for the stretch of road in question. Installation of deer Crossing signs is warranted if five deer car related accidents have occurred in a twelve month period. Placement of the signs should be reviewed every third year. Any necessary adjustments in the placement or removal of the sign should be made according to the following guidelines:
- A deer-car accident study should be conducted for the stretch of road encompassing the deer crossing area and one mile to either side of the area.
- The placement of signs shall be adjusted to reflect any change in the concentration of deer-car accidents in the study area.
- When the accident study shows that no deer-car related accidents have occurred in the study area in a minimum of twelve month period, the sign may be removed at the discretion of Washtenaw County Road Commission.
This policy shall be superseded by any and all changes to the Michigan Manual of Uniform Traffic Control Devices which affect the criteria and/or placement of deer crossing signs.
Neighborhood Watch Signs
Road Name Signs
Passing and No Passing Zones
Establishing Speed Limits
How Speed Limits are Established on County Roads
Michigan State law governs the methods by which speed limits are established on the county road system. The Michigan Vehicle Code was updated in 2006 with unanimous approval from the Michigan House and Senate. The revisions to the vehicle code established a new prima facie method for determining speed limits. The revisions also placed great emphasis on establishing an absolute speed limit through an engineering study and the traffic control order process. The Legislature, Michigan State Police, County Road Association of Michigan (CRAM), and representatives of the Washtenaw County Road Commission worked together to develop the changes in the vehicle code. The methods established for determining speed limits are based on empirical evidence and practices that are used throughout the country. These methods are designed to promote uniform operating speeds across the driving population and to provide the safest driving conditions possible.
The Basic Speed Law and Prima Facie Speed Limits
The Michigan Vehicle Code states that at the most basic level a “person operating a vehicle on a highway shall operate that vehicle at a careful and prudent speed not greater than nor less than is reasonable and proper”. The Vehicle Code places responsibility on the driver to be diligent and aware of their surrounding while being fully in control of their vehicle at all times. The Michigan Vehicle Code establishes the maximum speed limit on all highways as 55 mph. Prima facie reductions to this maximum speed include 25 mph in business districts, 25 mph on platted subdivision streets, and 15 mph in mobile home parks; these prima facie speeds do not need to be posted speed limits. Other prima facie speed reductions are based on access point density. The Michigan Vehicle Code allows for reductions in maximum speed limits to 45, 35, or 25 mph on the basis of access point density per half mile. Prima facie speed reductions on the basis of accesses points require the speed limit to be posted on the roadway. Maximum speed limit reductions made through this method require a field investigation where the number of access points (commercial driveways, residential driveways, and intersections) per half mile is determined. Reductions to the speed limit can be made if any of the following criteria are met:
- 25 miles per hour on a highway segment with 60 or more vehicular access points within 1/2 mile
- 35 miles per hour on a highway segment with not less than 45 vehicular access points but no more than 59 vehicular access points within 1/2 mile
- 45 miles per hour on a highway segment with not less than 30 vehicular access points but no more than 44 vehicular access points within 1/2 mile
Michigan State Police Traffic Laws Contains a list of new traffic laws