Case Study

Smart cities ensure that their citizens get from point A to point B as safely and efficiently as possible. To achieve this, municipalities turn to IoT development and implement smart traffic solutions.

Smart traffic solutions use different types of sensors$,$ as well as fetch GPS data from drivers$$ smart phones to determine the number, location and the speed of vehicles. At the same time, smart traffic lights connected to a cloud management platform allow monitoring green light timings and automatically alter the lights based on current traffic situation to prevent congestion. Additionally, using historical data, smart solutions for traffic management can predict where the traffic could go and take measures to prevent potential congestion.

For example, being one of the most traffic$-$affected cities in the world, Los Angeles has implemented a smart traffic solution to control traffic flow. Road$-$surface sensors and closed$-$circuit television cameras send real$-$time updates about the traffic flow to a central traffic management platform. The platform analyses the data and notifies the platform users of congestion and traffic signal malfunctions via desktop user apps. Additionally, the city is deploying a network of smart controllers to automatically make second$-$by$-$second traffic lights adjustments, reacting to changing traffic conditions in real time.

Sensors used in traffic light system:

a$.$

Infrared Sensors

b$.$

Light Detectors

c$.$

Acoustic Detectors

d$.$

Smell Sensors

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Which type of data is fetched by Sensors in smart traffic control:

a$.$

Location

b$.$

Speed of vehicle

c$.$

Number

d$.$

Driver

Question $3$

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Road surface sensors send $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$to a central traffics management platform.

a$.$

Real time update

b$.$

Speed of vehicle

c$.$

Location

d$.$

No updates

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The core element of architecture of smart city is $\_\_\_\_\_\_\_\_$

a$.$

Mobile Unified Service

b$.$

Urban Application Platform

c$.$

Management centre

d$.$

Integrated Information Provider

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Traffic light system is the example of which of the following?

a$.$

Open$-$loop system

b$.$

Closed$-$loop system

c$.$

Entry controlled

d$.$

Exit Controlled