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Distance between parking signs – how far should you go?

| January 6, 2012 | 4 Comments

No Parking SignWhile posting appropriate Parking or No Parking Signs on roads, in private driveways, offices, malls, business complex etc., sign installers are often faced with questions like- How many signs should be installed- How much is too much?  How far apart should two signs be erected? How tall a Parking Sign should be in order to be clearly visible to the traffic and not obstruct or hit the oncoming vehicles?

Although all of the above questions are important to be considered while posting signs at any facility, public road etc., the one question that often confuses sign installers frequently is the distance between subsequent Parking Signs.

Appropriate distance between signs ensures that they are visible to the moving traffic and are not missed out while entering or exiting a road, parking lot etc.

Every state identifies a specific distance that should be maintained between two signs.No Parking Any Time SignPennsylvania, for example, mandates 250 foot spacing between No Parking Signs in rural areas. New York requires a maximum of 200 ft spacing between Parking Signs. In Philadelphia, one Parking Sign per block is all that is required to regulate vehicle parking.

Apart from the state-specific regulations, some factors that determine the spacing between two signs are-

  • Legibility Distance- Measuring legibility distance (using a rule of thumb that each 1 inch sign lettering height equals 50 inches of legibility) helps installing subsequent signs in an area. The idea is that an average motorist should be able to view and understand the information displayed on the sign and has enough time to react to it.
  • Speed- The speed of the vehicle also determines the distance between two signs. Viewer Reaction Time (VRT) for vehicles traveling with a speed less than 35 miles per hour in a 2-3 lane environment is 8 seconds. While the VRT for vehicles traveling over 35 miles/hour in a 4-5 lane environment, is 10 seconds. The same logic applies here. Motorists traveling at different speeds should be able to react to the signs posted on the way. Hence sign spacing for different vehicles such as cars, trucks, bikes etc. would also be different.

These factors may be considered in ideal circumstances and with appropriate instruments to measure distances and speed. In practice, however, signs especially No Parking Signs are posted every 25’ to 75’ of distance with most property owners choosing a 30’ distance between signs.

 

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Category: No Parking, Regulations

Comments (4)

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  1. Very good info thanks, will come in handy. Sign spacing for No Parking Signs to be clearly visible is 30 feet thats about 10 meters in uk.

  2. Masamba Zuberi says:

    25-75′ spacing of signage is ridiculous. Try doing that in a scenic area and listen to the citizens scream. Use no parking signs with directional arrows at the regulation break points and supplement with additional sign, used sparingly, inbetween. 100-200′ spacing is sufficient unless an unusual site distance problem exists, such as heavy vegetation.

  3. Elizabeth says:

    Hi Today I parked just behind a sign that said no parking I have a permit I was on the other side of the no parking sign. I checked make sure there were no signs I didn’t see any. There was a crosswalk behind where I was parked & I cleared it;however, about 300 feet behind me almost a quarter of a block there was a no standing sign which was not in view in front of me or where I was parked I would have to walk up that direction to see the sign I always obey the law Today I had a ticket for $115. I feel I am not guilty because there was no sign where there was no parking. What can I do I will plead not guilty and I did take pictures. I mean really am I responsible for a sign that is so far back how could I see it back there also I do have a disabilty and I know I can’t park in no standing but never seen that sign.

    • Conrad Lumm says:

      Sorry. We’re not lawyers at MyParkingSign, and we can’t really give out legal advice about an ongoing case.

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