Tra 01
| Number of credits available | Minimum standards | Applicability | |||
|---|---|---|---|---|---|
| Up to 5 (building type dependent) | No |
Part 1 |
Part 2 |
Part 3 |
Part 4 |
| Yes | No | No | Yes | ||
Aim
To recognise projects where the proximity of good public transport networks has been reviewed, and encourage the implementation of alternative transport solutions where proximity to public transport networks is poor; thus helping to reduce transport-related pollution and congestion.
Assessment criteria
This issue is split into two parts:
- Accessibility Index (up to five credits - building type dependent)
- Alternative transport measures (up to three credits).
Note: Up to a maximum of five credits (within the limits set for building types in Table 34 ) are available from a combination of the following Accessibility Index and alternative transport measures criteria.
The following is required to demonstrate compliance:
Up to five credits - Accessibility Index
- The public transport Accessibility Index (AI) for the assessed building is calculated and BREEAM credits awarded according to the building type. For Accessibility Index benchmarks see Table 34 in the Checklists and tables section.
- The Accessibility Index is determined by entering the following information into the BREEAM Tra 01 calculator:
- The distance (m) from the main building entrance to each compliant public transport node
- The public transport type(s) serving the compliant node, e.g. bus, rail or tram
- The average number of services stopping per hour at each compliant node during the operating hours of the building for a typical day (see compliance notes and Table 36 in the Additional information section).
Up to three credits - Alternative transport measures
- Where alternative transport measures in Table 35 are provided, credits can be awarded based upon the number of measures implemented as detailed in Table 33 within limits of Table 34 set for the building types.
Table 33 Credits achieved for alternative transport measures
| Credits | Number of measures required from Table 35 |
|---|---|
| One | Two |
| Two | Four |
| Three | Six |
Checklists and tables
Table 34 Credits available for each building type relating to the public transport Accessibility Index (AI) score combined with Table 35 .
| Accessibility Index | ≥ 2 | ≥ 4 | ≥ 8 | ≥ 10 | ≥ 12 | ≥ 18 |
|---|---|---|---|---|---|---|
| Building type | BREEAM credits available | |||||
| Offices, Industrial, Multi-residential, Other building type 1* | 1 | 2 | 3 | - | - | - |
| Pre-school, School, Sixth Form | 1 | 2 | 3 | - | - | - |
| Retail, Law Court, Further Education College, Higher Education type 1*, Other building type 2* | 1 | 2 | 3 | 3 | 4 | 5 |
| Higher Education type 2* | 1 | 2 | 3 | 4 | 5 | - |
| Healthcare - Hospitals (Acute, Specialist, Teaching, Mental health) | 1 | 2 | 3 | 3 | 4 | 5 |
| Healthcare - GP surgery, Health centre, Community hospital | 1 | 2 | 3 | 4 | 5 | - |
|
Rural location sensitive buildings. Other building type 3* |
1 | 2 | - | - | - | - |
| Prison site, MOD site | 1 | 2 | - | - | - | - |
| Transport hub | 1 | 2 | 3 | 3 | 3 | 4 |
| *See Additional information - Additional building type classifications | ||||||
Table 35 Alternative transport measures
| Ref | Measure |
|---|---|
| A (worth two measures) | For buildings with a fixed shift pattern, i.e. where building users will predominantly arrive/depart at set times, this measure is achieved where the building occupier provides, or commits to providing a dedicated bus service to and from the building at the beginning and end of each shift/day. |
| B |
Where two credits under BREEAM issue Tra 03 have been achieved and the number of compliant cycle storage spaces provided is 10% greater than is required within 'Tra 03 Cyclist facilities', thus providing extra capacity for future growth and allowing more building users to cycle as a result. |
| C | Where two credits under BREEAM issue Tra 03 have been achieved and three or more types of compliant cycle facilities that are required within Tra 03 Cyclist facilities are to be provided, which includes the following facilities: showers, changing facilities, lockers and drying spaces. |
| D | Where at least 5% of the car parking spaces provided for the building users include electrical charging points, with a minimum of two spaces being provided. |
| E | Where priority spaces for car sharers are provided for at least 5% of the total car parking capacity for the building, with a minimum of two spaces being provided. |
| F | Where the building has digital information points providing details on alternative transport options; this could include bus times, car sharing and cycle routes. These information points must be well positioned and accessible to all building users. |
| G | Where on-site facilities have been provided that reduce the need to travel (taking into account the activities being undertaken in the building), for example the specification of video conferencing systems or where the appropriate amenities are available on-site. |
| H | Where negotiations with local bus companies have resulted in an increase of the local service provision in the building’s local area that results in improving the existing Accessibility Index (AI) for the building by at least one point. |
| I | Where another alternative measure has been implemented that is not listed above, which has been approved by BRE Global Limited. Any additional approved measures will be listed on the assessor FAQs and added to this list over time as and when BRE Global Limited re-issue the technical manual. |
Compliance notes
| Ref |
Terms |
Description |
|---|---|---|
| Applicable assessment criteria | ||
|
CN1 |
Part 1: Fabric and Structure |
All assessment criteria are applicable |
|
CN2 |
Part 2: Core Services | Not applicable |
|
CN3 |
Part 3: Local Services | Not applicable |
|
CN4 |
Part 4: Interior Design | All assessment criteria are applicable |
| Simple buildings | ||
|
CN5 |
Applicable assessment criteria |
All criteria relevant to the building type and function apply |
| General | ||
|
CN6 |
Campus style sites, see criterion 1. |
Where 80% or more of the buildings on a campus style site, e.g. further or higher education sites, are within 1000m of the campus' main entrance, then the campus' main entrance can be used as the reference point for the assessment of distance to compliant public transport nodes for this issue. The campus’ main entrance is that which is accessed by the majority of the assessed building’s staff/students/visitors. A site may have more than one main entrance which between them account for the majority of staff, students and visitors that access the site. In such a case any of the entrances can be used as the basis for the calculation. Where less than 80% of the buildings on the campus are within 1000m of the campus’ main entrance, the assessed building’s main entrance must be used as the reference point for the assessment of distance to compliant public transport nodes for this issue. This rule implies for large campus sites, when distances are too great to be comfortably covered by walking, the needs of the building users would be served better by locating the public transport nodes inside or on the periphery of the campus. Where the building is not part of a centralised campus then its main entrance must be used as the reference point for the assessment of this issue. |
|
CN7 |
Phased refurbishment/regeneration projects, see criterion 3 |
In the case of a large phased refurbishment/regeneration of a site where new transport facilities will be provided, but at a later stage than the building being assessed, the assessment can consider such facilities provided that: A commitment has been made to provide transport facilities within the shortest of the following periods, this is demonstrated either within the General Contract Specification or in the form of a Section 106 Agreement:
The most appropriate rule for the site in question must be used, ensuring that the time building users have to wait before having use of the transport facilities is as short as possible. Where the transport facilities will not be available for use within a period of five years from occupation of the building, they cannot be considered for determining compliance with the BREEAM criteria. |
Methodology
The methodology for calculating the Accessibility Index uses Transport for London’s Public Transport Accessibility Level (PTAL) method, itself based on a methodology developed in 1992 by the London Borough of Hammersmith and Fulham. For a detailed description of the PTAL methodology and how it works refer to the document Assessing Transport Connectivity in London: http://content.tfl.gov.uk/connectivity-assessment-guide.pdf.
Calculating the average number of services
For the purpose of the calculation, the frequency of public transport is the average number of services per hour. This is calculated by determining the number of stopping services at the node during the peak arrival/departure times for the building or the building's typical day’s operating hours (see definition of 'operating hours' (Relevant definitions)), divided by the number of hours within that period. For example: the average number of services for an assessment of a building that operates between 08:00 - 19:00 hrs (11 hours) and is within proximity of a bus stop with 35 stopping services during this period is 3.2 (equivalent to an average service frequency of approximately 20 minutes).
Multiple services
Services that operate from more than one node within proximity of the building, i.e. two separate bus stops served by the same bus, must be considered only once at the node in closest proximity to the building. Different services at the same node can be considered as separate.
Bi-directional routes
Routes will be bi-directional; however for the purpose of calculating the index, consider only the direction with the highest frequency (in accordance with the PTAL methodology).
Buildings in Greater London
Transport for London hosts a Planning Information Database that allows users to search for a specific London location by street name, coordinates or postcode and then calculate the Accessibility Index (AI) for that location. The Total AI is confirmed for the Point of Interest (POI) within the summary report, which can be downloaded and used as evidence of compliance for the assessed building. Go to: https://tfl.gov.uk/info-for/urban-planning-and-construction/planning-with-webcat/webcat.
Evidence
| Criteria | Interim design stage |
Final post construction stage |
|---|---|---|
| 1-3 |
One or more of the appropriate evidence types listed in the ‘BREEAM Evidential requirements’ section can be used to demonstrate compliance with these criteria |
|
| 1-2 | A completed copy of the Tra01 calculator | As per interim design stage |
Additional information
Relevant definitions
- Accessibility Index
- A measure that provides an indicator of the accessibility and density of the public transport network at a point of interest (in the case of BREEAM, a building). The index is influenced by the proximity and diversity of the public transport network and the level or frequency of service at the accessible node.
For example, a building that has a single public transport node 500m from its main building entrance with one service stopping every 15 minutes, i.e. four services per hour on average, will score an AI of approximately 1.90. Alternatively, the same node with one service every 15 minutes, but 300m from the building entrance will achieve an AI of 2.26. The same node with two services stopping every 15 minutes will score an AI of 2.85. The greater the number of compliant nodes, services and their proximity to the building, the higher the AI. - Additional building type classifications
-
Higher Education type 1: HE buildings located on a campus where less than 25% of students are resident on the campus or within 1km radius from the campus’ main entrance.
Higher Education type 2: HE buildings located on a campus where 25% or more of the students are resident on the campus or within 1km radius from the campus’ main entrance.
Other Building - type 1: A building predominantly occupied by staff/employees with occasional business related visitors.
Other Building - type 2: A building occupied by a number of core staff/employees with a larger number of consistently frequent visitors/users (either resident or non-resident).
Other Building - type 3: As type 2, but building types specifically required to be located rurally as a result of its function, i.e. a building which would never be located within an urban area, e.g. a National Park visitor centre (see definition of rural location and rural location sensitive buildings). - Compliant transport node
- A compliant node includes any bus service with a stop within 650m and any railway station within 1000m of the assessed building’s main entrance, measured via a safe pedestrian route (not ‘as the crow flies’). The service stopping at each node must provide transport from, or onward travel to, either an urban centre, major transport node or a community focal point, e.g. doctor’s surgery, library, school or village centre. Only local services should be assessed and any national public transport services should be excluded from the analysis, unless such a service can be said to provide a local commuter service.
Prison and MOD sites: The distance requirement for a compliant node for buildings on these sites is 1000m for both bus and rail. - Main building entrance
- The main building entrance is the entrance to the assessed building which is directly connected to the main building reception, circulation routes, lifts/stairs and is available to the majority of the building’s staff and visitors on arrival; it is not the site entrance (unless the site entrance is also the building entrance, e.g. a building with a boundary on a public highway).
For prison/MOD site assessments, the main entrance should be taken as the gatehouse entrance. - Operating hours
- BREEAM seeks to define the building’s accessibility to the public transport network for the period during which the majority of building users will travel to and from the building. In most cases the normal operating hours of the building can be used. Where shift patterns see the majority of building users (over 80%) arriving or leaving during a certain period, for example an office building where the majority of office workers arrive between 8.00-10.00, then that period can be used as an alternative to the operating hours of the building. This accounts for some building types that operate a 24 hour day and on a shift work basis.
During what typically would be deemed unsociable hours, and therefore periods where there is little if any public transport operating, such periods are not required to be accounted for in the assessment of this issue. Where the assessed building operates on a 24-hour basis or the operating hours are unknown at the time of assessment, then refer to and use the table of default operating hours, which can be found in the Additional information section of this issue. - BREEAM Tra 01 Calculator tool
- A spreadsheet-based calculator used to determine the Accessibility Index for the assessed building and the number of BREEAM credits achieved.
- Rural location
- A rural location is defined in this context as a site clearly not within or on the boundary of a small, medium or large urban cover. An urban cover will have a population of 3000 people or more, located within a tract of continuously built-up urban land extending 20 hectares or more. Therefore, the definition of rural includes village locations, green field sites or small urban centres with a population of less 3000 people within a tract of land no greater than 20 hectares. Such locations will most likely be on a local bus route to larger urban areas or other local towns and may have local shops and other facilities. This classification is based on the Department of Transport National Travel Survey definition, which specifies urban areas based on the extent of urban development indicated on Ordnance Survey maps
- Rural location sensitive buildings
- This definition includes any of the building types (listed below) where there is a demonstrable social or economic need from a rural population for the service/demand, which the new building is intended to meet; and therefore locating the building at an alternative site which could have higher public transport accessibility levels, i.e. within an urbanised area, is unfeasible. The following building types are examples of those that may fall into this category:
- Offices where providing services to the local community
- Industrial where providing services to the local community
- Retail where providing services to the local community
- Pre-school, primary and secondary school
- GP surgery
- Typical day
- The typical day is that which represents the period when travel to and from the building by its users and visitors will be at its highest. For most buildings this should be taken as a mid-week day. In choosing a typical day the assessor should check that timetabled information for that day is, within reason, representative of the public transport provision for the entire operating week (excluding Sundays).
Other information
Table 36 Default hours of operation by building type for a typical day
| Building type | Default hours |
|---|---|
| Commercial | 08:00 - 19:00 |
| Pre-school, school, sixth form college | 07:30 -22:00,15:00 - 17:30 |
| Further and Higher Education | 08:00 - 19:00 |
| Healthcare | 07:00 - 20:00 (encompassing visiting hours and the typical daytime shift pattern) |
| Retail: Shopping centre | 09:00 - 19:00 |
| Retail: Supermarket | 08:00 - 22:00 |
| Retail: Service provider | 08:00 - 18:00 |
| Retail: Convenience store | 07:00 - 22:00 |
| Retail: DIY/retail park | 08:00 - 20:00 |
| Retail: Shop | 08:30 - 17:30 |
| Multi-residential accommodation | 08:00 - 19:00 |
| Court | 08:00 - 19:00 |
| Prison |
07:00 - 20:00 (encompassing visiting hours and the typical daytime shift pattern) |
| Other Buildings |
08:00 - 19:00 (or use any of the above hours, as appropriate to the building type) |
| 24 hour use building | 07:00 - 20:00 |