The use of public transportation is increasing dramatically due to the uncontrolled increase of population around the world and the expansion of the cities and villages which directly affects the capacity and demand on the transportation units. Despite the importance of public transportation, there are some problems regarding the public transportation such as: the availability and capability of public transportation for all people especially those suffering from disabilities, the endless vehicles accidents, and the reliability of public transportation to carry the passengers with a fixed deviation time from schedule, and the negative impact of public transportation on environment. Furthermore, with the increase in the population, using public transportation will be difficult because of street congestion and it will get tougher in the future. However, the world began to understand the problem and start to take some serious steps toward the improvement of public transportation regarding safe, economic, environmental, and comfortable roads and transportation systems. One big and major step toward the new transportation system is to involve the technology in the equation. The transportation systems in the modern world are on the edge of great and important transformation. The way we travel and move daily is set to change significantly over the next 20 years due to many factors including technology and particularly in increasing of Internet-enabled, location sensitive mobile devices and the data they provide. These devices supply us with transport information users and provide network operators with data and a platform to deal and handle and develop services, monitor and manage traffic flow and build customer relationship. Managing the population and traffic rise are what concerning the world and this can be done by using the idea of intelligent transportation system (ITS) which make driving and traffic management better, and safer. The new transportation technologies including connected and autonomous vehicles, alternative fuels, keyless fleet management and traffic analytics, as well as local zoning and planning policies that support transit-oriented development are expected to face and meet the challenges of population and traffic expansion. These new technologies on road communication will dramatically change the way of operation of vehicles and provide information and data along with the capabilities for better, and real-time traffic management if the convenient and necessary network infrastructure is placed. Intelligent transportation system (ITS) form an important element in the transformation of transportation into a connected, dynamic component of the city as a system which will have a great influence and impact on the quality of life and business for people. According to Bill Ford, Jr., executive chairman of the ford motor company “Cities are struggling with transportation today and will struggle even more in the future,” While addressing the ITS world congress in 2014, he stated that “We need to redefine what mobility is for the coming century.”. The aim of ITS is to process and share information that can prevent vehicle accidents, keep traffic moving and reduce environmental impacts and this can happen by developing the safety and mobility of transportation by integrating advanced, wireless communications technologies into transportation infrastructure and vehicles along with coordinating traffic signals, specifying signal data to transit lanes, electronic data signs and variable speed limit signs. Furthermore, ITS is interested in the automatic distribution of real-time data to websites, social media feeds, mobile apps, and local TV and radio stations. The idea of ITS is attractive since it can be edited by anyone including cycling and community groups. It gives people the power to map their local area and update the availability cycle lane which will create more useful and accurate results. These technologies are not just useful in making people`s life easier but also minimize the cost of fixing and replacing vehicles, traffic congestion (about 1% of global GDP), road accidents (about 1.25 million deaths annually), and air pollution (health problems such as respiratory ailments). The following figure illustrates what ITS is planning and looking for in the coming future.
This figure explains the advantages and aims of ITS by developing a truly integrated mobility system that combines public transit, car sharing, autonomous vehicles, smart infrastructure, and more. Furthermore, according to many studies and related websites like McKinsey and Bloomberg New Energy Finance that more than 50 metropolitan areas over the world will advance their mobility systems which will yield in 600$ billion in societal and economic benefits through 2030. Japan which is one of the most countries that interests about the efficiency, speed, and reliability of public transportation have started the innovation in public transportation by establishing the fastest and most reliable and efficient rail system called Shinkansen. Nevertheless, Japan did not stop at that limit but it is developing and improving the ITS objectives by embarking on a greater and more important target which is the construction of the world’s first inter-city maglev line and it is expected to be fully operated by 2035. This system will decrease and cut the travel time between the two largest cities Tokyo and Osaka to be 67 minutes with speed above 500 km per hour. America, for instance, is still behind Japan, Europe, and China regarding the new, technological public transportation. The development and innovation of public transportation in America are slow and the stations are being expanded constantly and many new lines are not being built. Establishing fast, comfortable and modern public transportation requires from the governments to consider the travel in different patterns with the technology involved by designating zones for pickups and drop-offs to minimize the congestion and ease the vehicles flow. Furthermore, these zones will be more useful and valuable for urban land, since it could be carved out of parking spaces, which will decrease the demand, as well as the vehicles, will be used more efficiently. The world is moving toward irreversible development and advancement of mobility systems and sustainable transportation to meet the coming challenges of population expansion, increasing the demand on vehicles, increasing the congestion and wastage of time, raising of the negative impacts on the environment.