Advanced Turf® System (ATS)

Structural design guidance for vehicular access

The Advanced Turf System (ATS) is suitable for a wide range of trafficked applications where a free-draining, compaction resistant and high load bearing, discreetly reinforced natural grass surface is required. Typical applications include fire & emergency access lanes, HGV maintenance & MEWP routes, overflow parking, event areas, helipads & airfield aprons, pedestrian & disabled access, and sculptured slopes.

This document is intended to be a summary presenting typical solutions. Contact ABG for detailed site specific advice.

Typical construction detail:

Notes:

a. For advice on the installation and maintenance of ATS, please refer to the ABG Advanced Turf® Installation Guide.

b. Advice on subgrade CBR% strengths, ground conditions, and construction over weak ground is available from ABG.

c. Alternative ABG stabilisation geosynthetics may be used in lieu of ABG Abgrid geogrid. These include ABG Gridtex Type 2 high strength woven geotextile or ABG Abweb geocells. If the subbase stabilisation is omitted, the total sub-base layer thickness (‘D’ on Table 1) is typically increased by a minimum of 50%.

D. Sub-base design options:

d1. Where a porous sub-base is required for SuDS applications a permeable open-graded (reduced-fines) aggregate is recommended, such as DTp Type 3 low-fines roading aggregate, or BS 7533-13:2009 SuDS aggregate (4/20 or 4/40).

d2. Where a non-porous sub-base is required a conventional DTp Type 1 sub-base is recommended. It is essential that a drainage system such as ABG Fildrain is incorporated. Specific advice is available from ABG.

d3. Where no sub-base layer is required (such as on subgrade soils with a CBR > 6%), the geotextiles and sub-base stabilisation can be omitted.

e. Maximum sub-base particle size should match minimum subbase thickness but must not exceed 75mm diameter. For subbase thicknesses of around 100mm, a minimum 37.5mm particle size should be adopted to allow effective installation of the Abgrid.

f. The sub-base must be overlaid by a Terrex NW9 geotextile to provide separation, enhanced water treatment function and prevent migration of the bedding layer.

g. Typical paving edge restraint solutions include concrete, timber, railway sleepers, steel, heavy-duty plastic, or by simply leaving a 45° battered edge to the compacted ATS rootzone layer where it will abut an adjacent grassed area.

h. Advanced Turf Access Routes can be delineated using kerbs, bollards, marker posts, trees or planted areas as required.

i. Fertiliser will help to establish and maintain a healthy grass sward which is capable of sustaining traffic. Local and seasonal weather conditions will determine the degree of irrigation required. Inadequate irrigation during the grass establishment period may result in drought conditions and a failure to establish uniform quality grass cover.

j. The maximum advised gradient for fire access, disabled access, and other vehicular applications is 8% (1:12) 5°.

k. When designed in accordance with the recommendations, Advanced Turf complies with BS8300:2009 : “Design of buildings and their approaches to meet the needs of disabled people” – Code of Practice (ISBN 9780 580 57419) & Building Regulations Document ‘M’ Section 6.

l. All stated dimensions & weights are nominal and in accordance with manufacturing +/- tolerances.

m. The recommendations in this document are only suitable for use with ABG products.

n. Advanced Turf® is a registered trademark of Schweitzer-Mauduit International (SWM)

Table 1: Advanced Turf® System (ATS) typical DTp Type 3 sub-base thickness (D) requirements – refer to specific construction drawing

Advanced Turf reinforced grass system

Table 2: Field guidance for estimating sub-grade shear strengths

Field guidance for estimating sub-grade shear strengths

Advanced Turf - Reinforced Grass

Netlon Advanced Turf System (Netlon ATS) is a high performance mesh-element reinforced natural grass rootzone system. It provides an aesthetic, SuDS compliant free-draining grassed surface, capable of sustaining heavy vehicle loadings in occasional-use applications.

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Netlon Advanced Turf reinforced grass system for traffic from ABG Geosynthetics
 

Products

Advanced Turf - Reinforced Grass

Netlon Advanced Turf System (Netlon ATS) is a high performance mesh-element reinforced natural grass rootzone system. It provides an aesthetic, SuDS compliant free-draining grassed surface, capable of sustaining heavy vehicle loadings in occasional-use applications.

more...

Netlon Advanced Turf reinforced grass system for traffic from ABG Geosynthetics
 

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All information is supplied in good faith and without charge to enable reasonable assessment of the practical performance of ABG products. Final determination of the suitability of information or material for the use contemplated and the manner of the use is the sole responsibility of the user. As design and installation is beyond the control of ABG (unless specifically requested) no warranty is given or implied and the information does not form part of any contract. ABG reserve the right to update the information within at any time without prior notice. ©2017 ABG Ltd

 

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