The Legal Framework
The Disability Discrimination Act 1995 (DDA) was superseded in Great Britain by the Equality Act 2010, which consolidates discrimination law across nine protected characteristics including disability. The duty to make reasonable adjustments for disabled persons is a core requirement of the Act, applying to providers of services, public functions, and premises. For physical barriers and access control equipment, any barrier that prevents or disadvantages a disabled person accessing a service or premises must be removed or adjusted unless doing so would be unreasonable — a standard assessed proportionately against the cost and practicality of the adjustment.
BS 8300: The Technical Standard
BS 8300:2018 (Design of an accessible and inclusive built environment) provides detailed technical guidance for designing buildings and their approaches for disabled people. Key provisions relevant to barriers include: minimum 1500mm × 1500mm manoeuvring space for wheelchair users at access control points, minimum 900mm clear passage width for wheelchair access (850mm absolute minimum), dropped kerb requirements at all pedestrian crossings, tactile paving requirements at hazard detection zones, visual contrast requirements (barriers must be visually distinguishable from their background for persons with visual impairment), and reach heights for controls of 750–1200mm from finished floor level.
Bollard Spacing for Wheelchair Access
A critical and frequently overlooked design requirement: bollard spacing must accommodate wheelchair and mobility scooter users.
| User Type | Required Clear Width |
|---|---|
| Ambulant pedestrian | 600mm minimum |
| Wheelchair user | 900mm minimum (1200mm preferred) |
| Mobility scooter | 900–1100mm depending on scooter class |
| Parent with pushchair | 900mm minimum |
Bollard lines intended to prevent motorcycle access (which require spacing of approximately 900mm or less) may inadvertently exclude wheelchair users. Where motorcycle exclusion is the objective, consider alternative design solutions that maintain wheelchair access clearances.
Visual Impairment Considerations
Bollards and barriers pose a particular hazard for persons with visual impairment. Mitigation measures:
- High colour contrast: Bollards in yellow or white against dark surroundings are most visible; black bollards against dark backgrounds are hazardous
- Tonal contrast: The light reflectance value (LRV) difference between a bollard and its background should be at least 30 points per BS 8300
- Tactile guidance: Tactile paving (corduroy hazard warning surface) may be required at bollard arrays not otherwise detectable by a long cane
- Height: Bollards below 1000mm are harder to detect by long cane sweep — standard 900–1000mm height aids detection
Accessible Access Control Requirements
Turnstiles and swing barriers must include accessible bypass gates or lanes compliant with BS 8300:
- Minimum 900mm clear gate width (1000mm+ preferred for powered wheelchair users)
- Level threshold — no raised lip or step
- Door/gate opening force not exceeding 20N (or powered/automated)
- Hold-open mechanism allowing extended passage time for slower users
- Accessible credential reader height: 750–1200mm from finished floor level
- Hearing loop induction provision at intercom positions
The Reasonable Adjustment Duty in Practice
The reasonable adjustment duty requires service providers to anticipate the needs of disabled people proactively — not wait until a disabled person is disadvantaged and then react. This means conducting access audits, seeking specialist advice from Access Consultants or disabled users' groups, and implementing improvements before they are required by a specific complaint. Failure to do so exposes the service provider to discrimination complaints and legal liability.
Conclusion
Inclusive design of barriers and access control is both a legal requirement and a moral imperative. BS 8300 provides detailed technical guidance that, when followed, ensures barriers serve all users safely and lawfully. Browse our accessible bollard and access control range.