• One Way Signs: Helping Improve Traffic Flow With Single Direction Traffic

    One Way Signs

    Like it or not, the reason why one way streets exist is to improve the flow of traffic in congested areas. The best way to communicate to drivers is to post one way signs so they know the rules of these roads.

    Traffic is typically lighter on one way streets because drivers don’t have to worry about oncoming traffic. However, these roads aren’t always popular because they force motorists to follow certain roundabout ways to get to their destination. Others prefer these roads because of the benefits to smoother-moving traffic.

    Traffic Signs Used for One Way Street Systems

    The most commonly used sign for one way streets is, of course, the one way sign. This usually features an arrow pointing to either the right or the left, to show motorists which way traffic should flow in that particular street. They can be used as parking lot signs to show drivers which direction they should take to get to a parking space or to leave the parking lot. This is also done to help improve traffic flow within parking facilities.

    Sometimes a one way sign will not carry an arrow on it due to the fact that it is posted at the entryway of a single direction street. When a one way sign is placed at the entryway of such a street, it can be accompanied by a no entry sign, wrong way sign or a do not enter sign. These particular One Way signs can also carry the “Do Not Enter” message on them to tell people in one go that they should not enter these roads because traffic is heading in the other direction.

    Where One Way Signs Should Be Placed on Intersections

    One Way Intersections

    MUTCD One Way Intersection Diagrams

    As per MUTCD guidelines, One Way Signs that are used for intersections should be placed in very specific areas according to the kind of intersections these are used on. Here are the guidelines for a couple of one way streets that are connected with two way streets.

    • One way street cutting through a two way road – both roads have two lanes, but one of these carry one way traffic and the other carries two way traffic. For these, you will need to post One Way Signs with directional arrows on both sides of the two way traffic road. You can also add a supplementary sign at the crossing in case motorists fail to take note of the first sign.
    • Two way street entering into a One Way, T-shaped intersection – One Way Signs for these roads should be installed at the junction of the intersection where the vehicles are supposed to turn into the one way street, and right across from the two lane road to supplement such a sign.

    There are other One Way Sign rules and other Traffic Control Device rules for you to learn about, if you find the need to further your knowledge about traffic signs. For further reading, you can visit the MUTCD page for Signs, Barricades and Gates.

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