Measures to improve the efficiency of bus transport include:

The correct answer is: d) All of the above.

Electric buses are more efficient than diesel buses, as they do not require the same level of maintenance and do not produce emissions. Dedicated bus lanes allow buses to travel faster and more reliably, which can improve their efficiency. Intelligent transport systems can help to improve the flow of traffic and reduce congestion, which can also improve the efficiency of bus transport.

Here are some additional details about each of the measures mentioned in the question:

• Introduction of electric buses: Electric buses are powered by electricity, which is a cleaner and more efficient source of energy than diesel fuel. Electric buses also produce zero emissions, which can improve air quality in urban areas.
• Development of dedicated bus lanes: Dedicated bus lanes are lanes on roads that are reserved for buses only. This allows buses to travel faster and more reliably, which can improve their efficiency. Dedicated bus lanes can also help to reduce congestion, as buses are not competing with other vehicles for space on the road.
• Implementation of intelligent transport systems: Intelligent transport systems (ITS) are a range of technologies that can be used to improve the flow of traffic and reduce congestion. ITS can include things like traffic sensors, cameras, and variable message signs. ITS can help to improve the efficiency of bus transport by making it easier for buses to get around and by reducing the amount of time they spend waiting in traffic.