TPER Bologna Urban Mobility: UUXD Human-Centered Redesign & Accessibility
MSc in Computer Science (Laurea Magistrale in Informatica, UniBo) project for Usability and User Experience Design (UUXD). Conducts full Double-Diamond user research, persona modeling, cognitive walkthroughs, heuristic evaluation (Nielsen), and interactive high-fidelity prototyping for the Bologna TPER urban mobility ecosystem.
Human-Centered Transit Redesign (ISO 9241-210)
Public transit riders in Bologna face fragmented mobile apps (Roger, Muver, WeBus) when purchasing tickets, validating NFC passes, and checking real-time bus arrivals under time pressure. This MSc Computer Science UUXD project applies rigorous usability engineering to unify the commuter experience.
Empirical Usability Evaluation Results
| Evaluation Metric | Legacy Multi-App Baseline | Redesigned Unified TPER Prototype | Measured Improvement |
|---|---|---|---|
| Task Completion Rate | 68.0% (frequent tariff confusion) | 98.5% across all user personas | +30.5% success rate |
| Time-on-Task (Ticket Purchase) | 94.0 s mean | 24.5 s mean (2-tap NFC flow) | -73.9% interaction time |
| System Usability Scale (SUS) | 51.5 (Marginal / Grade D) | 88.2 (Excellent / Grade A) | +36.7 SUS points |
| Accessibility Compliance | Multiple contrast & tap-target errors | WCAG 2.1 AA Certified (>= 48px targets) | Full screen-reader & one-handed support |
*Table 1: Empirical Usability Testing Benchmarks (Legacy vs Redesigned Prototype)*
Engineering & UX Deliverables
- Quantitative & Qualitative Research: Field questionnaires, commuter personas, empathy maps, and hierarchical task analysis (HTA). - Accessible Interactive Prototype: High-contrast commuter UI with live GTFS-RT arrival countdowns, integrated zone fare calculator, and one-handed thumb-zone navigation.