Some Traffic Lights Now Use AI to Control Cars

End-of-lesson check

15 questions · take it digitally for instant feedback at tendril.neural-forge.io/learn/quiz/end-explorers-tools-AI-on-traffic-lights

1. What device do AI traffic lights use to watch how many cars are waiting?

   1. Cameras
   2. GPS trackers
   3. Microphones
   4. Radar sensors

2. How do AI traffic lights decide when to change from green to red?

   1. They watch how many cars are waiting and adjust
   2. They always change every 30 seconds
   3. They wait for a police officer to signal
   4. They follow a fixed timer set long ago

3. What happens when an AI traffic light sees many cars waiting at a red light?

   1. It turns off completely
   2. It gives a longer green light
   3. It stays red even longer
   4. It calls a tow truck

4. What special thing can AI traffic lights do for buses?

   1. They play music for bus passengers
   2. They paint buses yellow
   3. They count how many people are on the bus
   4. They give buses extra green time

5. How can AI traffic lights help emergency vehicles like ambulances?

   1. They clear a path by turning lights green
   2. They turn into disco lights
   3. They slow down all traffic
   4. They call the hospital

6. What can AI traffic lights do when they see many people walking at a crosswalk?

   1. Make cars go faster
   2. Call the mayor
   3. Turn off the crosswalk
   4. Make the crosswalk signal longer

7. What is the main advantage of AI traffic lights compared to old-school timer lights?

   1. They keep traffic flowing better
   2. They never need electricity
   3. They look prettier
   4. They cost less money to build

8. What would likely happen at a busy intersection if it only used old fixed-timer lights?

   1. All cars would drive faster
   2. Pedestrians would never wait
   3. Cars would always move perfectly
   4. Traffic might get stuck even when no one is coming

9. Why might a city want to install AI traffic lights?

   1. To replace all traffic signs
   2. To make traffic jams worse
   3. To help cars move faster and reduce waiting
   4. To make drivers angry

10. What makes a city a 'smart city'?

    1. It has more parks
    2. It uses technology like AI to solve problems
    3. It is very old
    4. It has more buildings

11. If you wait at a red light much longer than usual, what might be true about that light?

    1. It might be powered by solar
    2. It might be broken
    3. It might be an AI light adjusting to traffic
    4. It might be a fake decoration

12. Which of these is something AI traffic lights cannot do?

    1. Watch traffic with cameras
    2. Change green time based on traffic
    3. Predict the weather tomorrow
    4. Help emergency vehicles

13. How do AI traffic lights know when a bus needs extra green time?

    1. The bus sends a signal to the light
    2. Bus drivers honk
    3. AI cameras detect the bus
    4. Drivers wave their arms

14. What is one sign that a city might be using smart traffic lights?

    1. All lights blink yellow
    2. Lights seem to change based on how busy traffic is
    3. There are no traffic lights at all
    4. Lights stay the same green for exactly one minute

15. Why is it helpful for crosswalk signals to change based on how many people are walking?

    1. So pigeons can cross first
    2. So cars can drive faster through crosswalks
    3. So people can take longer naps
    4. So pedestrians have time to cross safely