Prioritizing Accessibility and Availability in Rail Transport for Users with Disabilities

Why It Matters

Understanding the unique needs and priorities of specific user groups, such as persons with disabilities, is crucial for developing inclusive and equitable services. This research provides a framework for systematically gathering and analyzing user feedback to inform design decisions that directly impact user experience and satisfaction.

Key Finding

When assessing the quality of rail transport services for people with disabilities, the most important factors are ease of access and the availability of services, followed by safety, timeliness, customer support, clear information, comfort, and environmental considerations.

Key Findings

• Accessibility was identified as the most critical criterion for service quality.
• Availability, Security, Time, Customer care, Information, Comfort, and Environmental impact followed in importance.
• The Full Consistency Method combined with a Rough Power Heronian aggregator provides a robust approach for group decision-making in service quality assessment.

Research Evidence

Aim: To develop and apply a novel model for defining the most critical service quality criteria in rail transport, with a specific focus on the needs of persons with disabilities.

Method: Multi-criteria decision-making (MCDM) using the Full Consistency Method and a Rough Power Heronian aggregator.

Procedure: A comprehensive survey identified 168 potential service quality criteria across Serbia. These criteria were then analyzed using the developed aggregation model to determine their relative importance from the perspective of users with disabilities.

Sample Size: 168 criteria were analyzed, with the user perspective implicitly represented by the criteria selection process.

Context: Public passenger rail transport services.

Design Principle

Inclusive design requires a deep understanding of diverse user needs, with a focus on removing barriers and ensuring equitable access.

How to Apply

Conduct user research with specific demographic groups to identify their most critical needs and use robust decision-making models to prioritize design interventions.

Limitations

The study was geographically limited to Serbia, and the specific aggregator model may require further validation in different cultural or transport contexts.

Student Guide (IB Design Technology)

Simple Explanation: When designing train services, especially for people with disabilities, make sure it's easy to get on and off trains and that services are actually available when they need them. These are the most important things.

Why This Matters: This research shows how to systematically find out what features are most important to specific users, which is essential for creating successful and inclusive designs.

Critical Thinking: How might the prioritization of criteria differ for other user groups, such as elderly individuals or parents with young children, and what methodologies could be employed to uncover these specific needs?

IA-Ready Paragraph: This research highlights the critical importance of user-centered design, particularly for vulnerable populations. The study by Dordević et al. (2019) demonstrates that for users with disabilities in rail transport, accessibility and availability are the most significant factors influencing service quality. This underscores the need for designers to prioritize inclusive design principles and conduct thorough user research to identify and address the most pressing needs of all potential users.

Project Tips

• Clearly define the target user group for your design project.
• Use structured methods to gather and analyze user feedback on service quality.

How to Use in IA

• Reference this study when justifying the prioritization of user needs, particularly for accessibility features in your design project.

Examiner Tips

• Demonstrate a clear understanding of user needs and how they informed your design decisions, especially for diverse user groups.

Independent Variable: Service quality criteria (e.g., Accessibility, Availability, Security).

Dependent Variable: Perceived importance of service quality criteria by users with disabilities.

Controlled Variables: The specific aggregation model used (Full Consistency Method and Rough Power Heronian aggregator), the geographical context (Serbia).

Strengths

• Employs a novel and rigorous multi-criteria decision-making approach.
• Focuses on a specific, often underserved, user group (persons with disabilities).

Critical Questions

• To what extent are the identified criteria universally applicable across different rail transport systems and cultures?
• How can the 'Rough Power Heronian aggregator' be practically implemented by design teams without specialized expertise in fuzzy logic or advanced mathematics?

Extended Essay Application

• An Extended Essay could explore the application of similar multi-criteria decision-making models to assess the design requirements for other complex systems, such as public housing or educational platforms, focusing on specific user demographics.

Source

A New Model for Defining the Criteria of Service Quality in Rail Transport: The Full Consistency Method Based on a Rough Power Heronian Aggregator · Symmetry · 2019 · 10.3390/sym11080992