Why Doesn't the NYC Subway Use Full-Height Revolving Turnstiles?
The NYC Subway System's Decision
The New York City (NYC) Subway system does not use full-height revolving turnstiles at all its entrances for several significant reasons. These include space constraints, cost and installation challenges, accessibility concerns, operational efficiency, and current infrastructure considerations.
Space Constraints
Full-height turnstiles require more space than standard waist-high turnstiles. Many subway station entrances are designed with limited space, making it impractical to install the larger turnstiles. This is a key factor that the NYC Subway must consider when upgrading its infrastructure.
Cost and Installation
Upgrading or retrofitting existing entrances to accommodate full-height turnstiles would involve significant costs and logistical challenges. These costs include the expenses of construction work and the potential disruption to service. The NYC Subway must carefully weigh the economic implications of such changes before implementing them.
Accessibility
The NYC Subway aims to be accessible to all riders, including those with disabilities. Full-height turnstiles may not be as accommodating for individuals using wheelchairs or other mobility aids compared to standard turnstiles, which often have wider openings or adjacent accessible gates. Ensuring the safety and comfort of all riders is a top priority.
Operational Efficiency
The current turnstile design allows for quick entry and exit, which is crucial for maintaining the flow of passengers during peak hours. Full-height turnstiles could slow down the boarding process, especially if riders need to stop and wait for the turnstile to rotate. This delay could lead to congestion and waiting times, negatively affecting customer satisfaction.
Security Considerations
While full-height turnstiles can enhance security by preventing fare evasion, the NYC Subway has implemented other measures to address these concerns. These measures include increased surveillance and enforcement, which may be more cost-effective and practical for the system. A complete overhaul of the turnstile system is not always necessary to achieve security goals.
Existing Infrastructure
Many stations are historic or were built with specific designs that do not easily accommodate new types of equipment. Changing the infrastructure can be complicated by legal and regulatory considerations. Ensuring compliance with building codes and historical preservation laws can add another layer of complexity to the upgrade process.
A Personal Perspective
I used to live on the end of the A train in Inwood. The full-height turnstile had such torque that the door would immediately snap back after going through. Having been nearly smacked in the face by the turnstile, I called 311 and asked them to fix it. They did. While personal injuries are rare, they underscore the importance of proper maintenance and safety measures in public transportation systems.
The NYC Subway has made progress in addressing these issues through regular maintenance and updates. However, the challenges presented by space, cost, accessibility, and infrastructure remain significant factors in their decision-making process. As the system continues to evolve, it will need to strike a balance between innovation and practicality to meet the needs of its diverse and demanding ridership.