Introduction

Park and Ride (P&R) facilities represent a strategic approach to addressing the adverse effects of private vehicle use in urban centers. This system enables users to park their private vehicles at designated facilities and switch to public transportation to complete their journey to Central Business Districts (CBDs). This intermodal shift promotes sustainable transportation, reduces traffic congestion, and minimizes environmental pollution in urban areas.

Definition and Purpose

The Park and Ride system is a parking policy widely employed to alleviate the negative impacts of private vehicles on urban centers. It allows drivers to park at a designated facility and transfer to public transport modes such as buses, light rail transit (LRT), or metros. This system not only facilitates the reduction of private vehicle trips into city centers but also enhances the use of public transportation, fostering a modal shift towards more sustainable urban mobility.

Problem Addressed

The primary challenge for the P&R system is the strategic location of its facilities. The attractiveness and efficiency of a P&R system heavily depend on the placement of these facilities. Optimal locations are typically near major public transport stations to ensure seamless transitions between private and public transport modes. The key factors influencing location decisions include travel time, convenience, and socio-economic conditions.

Several criteria must be considered when determining the location of P&R facilities. Below we try to explain them.

Distance

From Residential Zones: The proximity of Park and Ride (P&R) facilities to residential zones is a crucial determinant of their usage. Facilities that are closer to where people live are more likely to be utilized, as they reduce the initial segment of the journey by private car, making the switch to public transport more convenient. Shorter distances to residential areas can encourage a higher uptake of the P&R system, thereby reducing the number of cars entering urban centers and alleviating traffic congestion.

To CBD: The distance from the P&R facility to the Central Business District (CBD) plays a significant role in the overall efficiency of the system. A well-located P&R facility should offer a swift and straightforward transition to public transport, ensuring that the journey to the CBD is efficient and time-effective. Ideally, P&R facilities should be positioned to balance the convenience of access from residential areas and the ease of travel to the CBD, ensuring that users find the switch to public transport an attractive option.

Traffic Conditions

Travel Time by Private Car: The time taken to travel by private car from home to the P&R facility is a critical factor in determining the system's attractiveness. If the journey to the P&R facility is significantly shorter than the journey to the CBD, drivers are more likely to opt for this intermodal shift. This factor includes considerations of traffic congestion and the availability of direct routes to the P&R facilities.

Travel Time by Public Transport: Once users switch to public transport at the P&R facility, the duration of this segment of the journey to the CBD becomes crucial. The efficiency and speed of public transport services directly affect the attractiveness of the P&R system. Public transport should ideally offer a quick and reliable service to encourage more users to leave their cars at the P&R facilities.

Combined Travel Time: The total travel time, which combines the time spent traveling by private car to the P&R facility and the subsequent public transport journey, is a comprehensive measure of the system's efficiency. Minimizing the combined travel time is essential to making the P&R system a viable and attractive alternative to driving directly into the CBD. The overall convenience and time savings provided by the P&R system are key to its success.

Public Transport Accessibility

Frequency of Operations: The frequency of public transport services is a pivotal factor in the success of P&R facilities. Higher frequencies reduce waiting times and ensure that users can make their journeys without long delays. Frequent services enhance the reliability and convenience of the P&R system, making it more attractive to potential users.

Transfer Time: The time required to transfer from the P&R facility to the public transport station is another critical aspect. Ideally, P&R facilities should be located in close proximity to public transport stations to minimize this transfer time. Quick and easy transfers encourage more people to use the P&R system, as lengthy or cumbersome transfers can deter potential users.

Proximity to Public Transport: The distance between the P&R facility and the nearest public transport stop is directly related to the system's usability. Facilities that are adjacent to or within a short walking distance of public transport stops provide a seamless transition for users, enhancing the overall convenience and attractiveness of the P&R system.

Transport Aspects

Reduction in Private Car Trips: A primary objective of P&R systems is to reduce the number of private car trips into the CBD. By providing a convenient and efficient alternative, P&R facilities help decrease traffic congestion and lower the environmental impact of urban commuting. This reduction is crucial for improving urban mobility and the quality of life in city centers.

Increased Demand for Public Transport: The introduction of P&R facilities should lead to an increase in the use of public transport. As more people switch from private cars to public transport, the demand for these services rises, potentially leading to more frequent and extensive public transport networks. This shift supports the development of a more sustainable urban transport system.

Availability of Connections: The availability of multiple public transport connections at the P&R facility enhances its utility. Facilities with access to various public transport lines provide users with flexible options for reaching their destinations, making the P&R system more versatile and attractive.

Demand for Parking: The demand for parking at the P&R facility is a fundamental consideration in its planning and design. Adequate parking capacity is essential to accommodate the expected number of users. An underestimation of demand can lead to overcrowded facilities, while overestimation can result in underutilized spaces, both of which can affect the system's efficiency and user satisfaction.

Economic Factors

Implementation Costs: The cost of developing P&R facilities includes expenses related to land acquisition, construction, and infrastructure development. These costs must be weighed against the anticipated benefits, such as reduced congestion and environmental improvements. Efficient planning and cost management are essential to ensure the economic feasibility of P&R projects.

Land Use Costs: The financial implications of land use for P&R facilities can vary significantly depending on the location. Urban land is typically more expensive than suburban or peri-urban land. The choice of location must balance the cost of land with accessibility and convenience to optimize the system's efficiency and affordability.

Maintenance Costs: Ongoing maintenance costs are a crucial aspect of the economic viability of P&R facilities. Regular maintenance ensures the facilities remain safe, clean, and operational, contributing to user satisfaction and the long-term success of the P&R system. Budgeting for maintenance helps avoid deterioration and ensures the system's sustainability.

Environmental Impact

CO2 Reduction: P&R facilities contribute to lowering carbon emissions by reducing the number of private vehicle trips into urban centers. By promoting the use of public transport, P&R systems help mitigate the environmental impact of urban commuting, contributing to broader efforts to combat climate change and improve air quality.

Noise Reduction: The reduction in the number of vehicles entering the CBD also leads to a decrease in noise pollution. This is particularly beneficial in densely populated urban areas where traffic noise can significantly impact residents' quality of life. P&R systems contribute to creating quieter, more livable urban environments.

Impact on Green Areas: When establishing P&R facilities, it is important to consider their impact on existing green spaces. Preserving green areas and minimizing the ecological footprint of new facilities are essential to maintaining urban biodiversity and providing recreational spaces for residents. Sustainable planning should integrate P&R systems with urban green spaces to enhance the overall environmental quality.

Conclusion

Park and Ride facilities play a crucial role in promoting sustainable urban mobility by reducing private vehicle use and encouraging public transport utilization. Strategic location planning, based on a comprehensive set of criteria, is essential for maximizing the effectiveness of P&R systems. Urban planning officers must consider these factors to design P&R facilities that not only mitigate traffic and pollution but also enhance the overall quality of urban life.

References

Chen, T.-C. T., Honda, K., & Wang, Y.-C. (2015). Development of location-based services for recommending departure stations to park and ride users: A note. International Journal of Internet Manufacturing and Services, 4(1), 54.

Chen, Z., Xia, J., & Irawan, B. (2013). Development of Fuzzy Logic Forecast Models for Location-Based Parking Finding Services. Mathematical Problems in Engineering, 2013, 1-6.

Chen, Z., Xia, J., Irawan, B., & Caulfield, C. (2014). Development of location-based services for recommending departure stations to park and ride users. Transportation Research Part C: Emerging Technologies, 48, 256-268.

Ortega, J., Moslem, S., Tóth, J., Péter, T., Palaguachi, J., & Paguay, M. (2020). Using Best Worst Method for Sustainable Park and Ride Facility Location. Sustainability, 12(23), 10083.

Ortega, J., Tóth, J., Moslem, S., Péter, T., & Duleba, S. (2020). An Integrated Approach of Analytic Hierarchy Process and Triangular Fuzzy Sets for Analyzing the Park-and-Ride Facility Location Problem. Symmetry, 12(8), 1225.