The main objective of a good transportation system is to provide safe economical, efficient transportation for the facility of passengers and transport of goods.

The answer is D because actually means of transportation is transport the all type of material and passenger one place to another, i.e. means of transportation.

The main objective of transportation is to ensure safe, economical, and efficient transport of goods and passengers. This means that transportation systems should be designed and operated in a way that maximizes the benefits while minimizing the costs and risks associated with moving people and goods from one place to another.

Efficient Transport of Goods and Passengers:

Transportation plays a crucial role in the movement of goods and passengers. It is essential to ensure that this movement is efficient, meaning that it is done in the most effective and productive way possible. Efficiency in transportation can be achieved through various means, such as:

- Optimization of routes: Determining the most optimal routes for transporting goods and passengers can help reduce travel time and fuel consumption, leading to cost savings and increased productivity.
- Utilization of capacity: Maximizing the use of available capacity in transportation systems, such as vehicles, infrastructure, and networks, can help improve efficiency by reducing empty trips and maximizing the number of goods or passengers transported.
- Integration of different modes: Integrating different modes of transportation, such as road, rail, air, and water, can help create a seamless and efficient transportation network. This allows for the best use of each mode's strengths and reduces reliance on a single mode.
- Use of technology: The application of advanced technologies, such as GPS, real-time tracking systems, and intelligent transportation systems, can enhance efficiency by providing accurate information, optimizing traffic flow, and improving safety.

Safe Transport of Goods and Passengers:

Safety is a paramount concern in transportation. It involves protecting the well-being and lives of both goods and passengers during transit. Several measures can be implemented to ensure safe transportation:

- Compliance with regulations: Following and enforcing safety regulations, such as speed limits, weight restrictions, and driver qualifications, is essential to minimize the risk of accidents and ensure the safe transport of goods and passengers.
- Maintenance and inspection: Regular maintenance and inspection of vehicles, infrastructure, and equipment are critical to identify and address potential safety issues before they become hazards.
- Training and education: Providing adequate training and education to drivers, operators, and transportation personnel can enhance their awareness and understanding of safety practices, promoting safe transportation practices.
- Emergency preparedness: Having contingency plans, emergency response systems, and effective communication channels in place can help mitigate the impact of accidents or incidents, ensuring the safety of goods and passengers.

Conclusion:

In conclusion, the main objective of transportation is to achieve safe, economical, and efficient transport of goods and passengers. By prioritizing safety, optimizing efficiency, and utilizing appropriate technologies and strategies, transportation systems can effectively meet the needs of society while minimizing costs and risks associated with transportation.