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Smartphones and pedestrian safety

Smartphones and pedestrian safety is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Smartphones and pedestrian safety rather than just read about it. In short: Safety hazards have been noted due to pedestrians walking slowly and without attention to their surroundings because they are focused upon their smartphones. Texting pedestrians may trip over curbs, walk out in front of cars and bump into other walkers.

Smartphones and pedestrian safety — main illustration
Smartphones and pedestrian safety — illustration

Key takeaways

  • Smartphones and pedestrian safety belongs to computer science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Smartphones and pedestrian safety to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Smartphones and pedestrian safety from memory before moving on to harder problems.

Reference excerpt

Safety hazards have been noted due to pedestrians walking slowly and without attention to their surroundings because they are focused upon their smartphones. Texting pedestrians may trip over curbs, walk out in front of cars and bump into other walkers. The field of vision of a smartphone user is estimated to be just 5% of a normal pedestrian's. Some cities have taken design measures to make the streets safer for inattentive pedestrians, including lights embedded in pavements, and dedicated lanes for smartphone-using pedestrians to use. The pejorative term smartphone zombie has been used to describe inattentive phone users; this phrase was sometimes blended to Smombie in German and has seen some English usage. In Hong Kong such phone users are called dai tau juk ("the head-down tribe"). A 2017 review considered the popular culture term in regards to the medical diagnoses of internet addiction disorder and other forms of digital media overuse.

Pedestrian phone use

A 2012 study at twenty intersections in Seattle, USA, found 14% of pedestrians were talking or texting on a phone. A 2018 study of more than two thousand pedestrian observations at four intersections, one in New York City and three in Flagstaff, Arizona, USA, found 9% of pedestrians were talking or texting on a phone while crossing; in contrast to the previous study, this study did not find that phone usage altered walking speed. In 2016 the American Academy of Orthopaedic Surgeons created a "Digital Deadwalkers" awareness campaign, in response to the risks associated with walking across intersections and sidewalks while paying attention only to smartphones and not one's surroundings. They characterised such pedestrians as "oblivious to everyone else, so it's like they're dead-walking, sleepwalking".

Car driver phone use

Urban design

In Chongqing, China, the government constructed a dedicated smartphone-sidewalk in 2014, separating the phone users and the non-phone users. A similar scheme was introduced in Antwerp the following year. In Augsburg, Bodegraven and Cologne, ground-level traffic lights embedded in the pavement have been introduced so that they are more visible to preoccupied pedestrians, while traffic signals at an intersection in Zagreb cast the red light downwards, producing glare on smartphone screens. In Seoul, warning signs have been placed on the pavement at dangerous intersections following over a thousand road accidents caused by smartphones in South Korea in 2014. The city has also implemented traffic lights embedded into the ground to pass the indication to the pedestrian even if they are fully immersed in their smartphone experience.

Phone technology An app which uses the phone's camera to make the screen appear transparent can be used to provide some warning of hazards.

Legal measures In October 2017, the City of Honolulu, Hawaii introduced a measure to fine pedestrians looking at smartphones while crossing the road. In 2019, China introduced penalties for "activities affecting other vehicles or pedestrians" and a woman was fined 10 yuan in Wenzhou.

In fiction Science fiction author Ray Bradbury wrote about people being distracted by miniaturised technology in the 1950s, in his stories such as The Pedestrian and Fahrenheit 451. He wrote in 1958 of observing a couple walking in Beverly Hills, the woman listening to a small transistor radio "oblivious to man and dog, listening to far winds and whispers and soap-opera cries, sleepwalking, helped up and down curbs by a husband who might just as well not have been there".

See also

Digital zombie Jaywalking Mobile phones and driving safety Problematic smartphone use Phubbing Pokémon Go, a mobile game designed to be played outdoors

References

Further reading Hookham, Mark; Togoh, Isabel; Yeates, Alex (21 February 2016). "Walkers hit by curse of the smombie". The Sunday Times. UK. Archived from the original on February 22, 2016. Hatton, Celia (15 September 2014). "Chongqing's 'mobile lane'". BBC News. UK: BBC.

External links Media related to People walking with smartphones at Wikimedia Commons

Illustrations

Smartphones and pedestrian safety: People using phones while walking
People using phones while walking
Smartphones and pedestrian safety: A pedestrian crossing the road while looking down at a smartphone
A pedestrian crossing the road while looking down at a smartphone
Smartphones and pedestrian safety: A warning sign in Osaka
A warning sign in Osaka
Smartphones and pedestrian safety illustration
Smartphones and pedestrian safety illustration

Worked examples

Example 1 — a first encounter with Smartphones and pedestrian safety

Start with the simplest possible case. Write down what Smartphones and pedestrian safety claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Smartphones and pedestrian safety before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Smartphones and pedestrian safety ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Smartphones and pedestrian safety

In research
Smartphones and pedestrian safety appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Smartphones and pedestrian safety in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Smartphones and pedestrian safety is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computing and society, Digital media use and mental health, Mobile phone culture, so understanding it makes those chapters shorter.
In everyday life
Look for Smartphones and pedestrian safety outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Smartphones and pedestrian safety in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Smartphones and pedestrian safety means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Smartphones and pedestrian safety out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Smartphones and pedestrian safety in simple terms?

Safety hazards have been noted due to pedestrians walking slowly and without attention to their surroundings because they are focused upon their smartphones. Texting pedestrians may trip over curbs, walk out in front of cars and bump into other walkers.

Why does Smartphones and pedestrian safety matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Smartphones and pedestrian safety?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Smartphones and pedestrian safety.

Tags

  • Computing and society
  • Digital media use and mental health
  • Mobile phone culture
  • Pedestrian safety
  • Smartphones
  • Urban design
  • Walking

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