FactsCorner

This Is What Those Bumps On The Sidewalk Are Actually For



A really meaningful idea behind its installation...

Knobby Bumps

While walking on the sideways of the street or even standing, we don’t notice certain things that might have a deep meaning. I am talking about the knobby bumps on the ground found in many cities. Do you know what are they for? Is it a design or city planners have a specific thought behind its construction.

Let me tell you, these dots are there for a very good reason. They are designed to help people who are blind or have a limited vision to navigate their commutes.

Tactile Paving

Tactile Paving

These colourful pads with little bumps help individuals to find the difference between a sidewalk and a road. They actually tell visually challenged people that a curb slope is ahead of their way.

When a blind or partially sighted person is walking and feels a sudden change in the texture of the surface of the sidewalk either with a cane or with their feet, this signals that they need to pay special attention now while walking.

Design Specifications

Design Specifications

You may have observed a variety of raised surfaces while navigating a city. Some pads are in red or some are in yellow. They can be found anywhere in the town, either on sidewalks and on the train platforms.

These textured surfaces follow national and international design specifications to send an appropriate message to those who have difficulty in seeing.

Special Signal From Special Design

Special Signal From Special Design

From a variety of patterns available in the market, each pad delivers a different message. For example, a grid of bumps signals that the person is approaching a sloping curve connecting a sidewalk and a road. Other patterns of bumps signal that an individual is approaching a train platform.

A pad in red colour means that the intersection is a controlled one, while the pad with raised stripes signals that there are stairs coming in the way.

Important Signalling

Important Signalling

As per the American Foundation for the Blind, "18 percent of people who are visually impaired are classified as being totally blind and the majority of them can differentiate between light and dark."

So, with this thought these special pads are installed in two bright colours that are red and yellow. Because, there are many individuals with some degree of blindness who may not be able to differentiate between a beige sidewalk and a gray roadway, but can easily make out from the red or yellow color.

The Video

There are different patterns that you probably never noticed or paid attention to with each of them serves an important purpose. Watch the video below to learn more about these special patterns.



The blind and visually impaired are also an important part of our society and need to be safe like us. Share this post with your family and friends.



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