Frequently Asked Questions


What are the requirements to get a traffic signal installed?

  The first step is to perform a warrant analysis. The warrants for a traffic signal are listed in the Ohio Manual of Uniform Traffic Control Devices, section 6C. If the intersection meets any one of these warrants then the next step is to use sound engineering judgement to determine if the signal should be installed. There are cases that because of poor geometry, proximity to existing signals, etc. a location may meet the warrants but not be signalized. If the signal can be installed without negatively impacting other intersections or the traveling public then the signal should be designed and constructed. Per the Ohio Revised Code, the Ohio Department of Transportation can only install and operate signals at public streets. If a private development warrants a traffic signal then the development must enter into an agreement with the Ohio Department of Transportation, pay for the installation of the signal and pay a yearly maintenance/operating fee to the Ohio Department of Transportation.

It should be noted that signals do not cure all traffic problems. Signals increase delay and normally increase rear end and other type of accidents.


How are speed limits set and/or reduced?


Speed limits in Ohio are initially set by the Ohio Revised Code. In order to determine the safe and reasonable speed (reduce the speed) a speed study must be performed. The study takes into account the current vehicular speed, roadway features, development etc. Once the study has been completed and appropriate legislation passed, the study and legislation are submitted to the Ohio Department of Transportation for review and processing. If the department agrees with the study then the appropriate paper work is signed and the speed limit is journalized. The Ohio Department of Transportation must approve all speed limits, on all routes (city, township, county, etc.), that do not meet the statutory speed limits set forth in the Ohio Revised Code section 4511.21.

Speed limits are typically set at the 85% speed. This speed is the speed at which 85% of the drivers are traveling at or below. Studies have shown that this is the reasonable and safe speed. Speeds set higher or lower than the 85% speed usually have little effect on the actual speed of drivers and have almost no effect on safety. Setting unrealistic low speeds, usually below the 85% speed, does increase violations by responsible drivers and creates negative public relations by the perception that the speed limit is a ‘speed trap’. Also, unrealistic low speeds creates enforcement problems for law enforcement and possibly takes the law enforcement officers time away from more important activities.


How are 'No Parking' zones determined?

  The Ohio Revised Code section 4511.68 states locations where no parking is permitted. If there is a need to establish a no parking zone other than stated in the Ohio Revised code then a study must be performed. The study must be performed to determine if the parked vehicles are creating a potential unsafe/hazardous situation. If the study is approved then the No Parking zone is established.

Where can I put my driveway?


Before any driveway can be considered, on a state highway outside of a municipality, the District 8 Permit Department must be contacted. The Permit Department telephone number is 513-933-6577.

There are several factors that determine where a driveway can be located and what type of driveway is permitted, full or restricted. A full driveway means that all movements in and out of the driveway are permitted. A restricted driveway means that some of the movements in and/or out of the driveway will be prohibited. The primary factor is the Ohio Department of Transportation Access Manual. The manual describes what types of driveways and spacing of driveways are permitted on state highways, outside of municipalities. The location of the driveway also depends on sight distance. There must be adequate sight distance to permit the vehicles to enter and exit the driveway safely. The sight distance requirements can be found in the Ohio Department of Transportation Design Manual section 201.


Why are there different signs on the side streets than on State Highways?


The Ohio Department of Transportation follows the Ohio Manual of Uniform Traffic Control Devices. Many jurisdictions create signs that are different from the Manual. This can create confusion to motorist and misunderstanding. For uniformity and recognition the Manual should be followed. By following the Manual motorists are able to recognize and understand the meaning of signs from one area of the state to the next. Unusual signs require that the motorist divert attention from the roadway to try to understand the meaning of the sign. Most of the signs in the Ohio Manual are derived from the Federal Manual. These signs are typically studied and proven to be effective in conveying the appropriate message without requiring the motorist to concentrate on the signs meaning.

Any request for new signs on state highways, outside of municipalities, should be directed to the District 8 Traffic Planning Department, 505 South SR741, Lebanon, Ohio 45036.



Who can I call to report a sign that has been knocked down?

During working hours you can call 513-932-3030 or 1-800-831-2142, extension 933-6584. After hours you can call 513-932-3030 or 1-800-831-2142 and someone will be able to take the information and report it to the appropriate personnel.