Regency Road to Pym Street Project LANDSCAPING AND URBAN DESIGN

CONTACT

1300 110 906

www.r2palliance.com.au

info@r2palliance.com.au

FACT SHEET Landscaping The Regency Road to Pym Street (R2P) Project has been carefully designed to maintain existing vegetation wherever possible. The R2P Alliance has developed a landscaping package with a focus on:

• vegetation replacement - planting 700 new trees, grasses, ground covers and shrubs to offset the removal of trees;

• green infrastructure – an emphasis on making a green corridor and providing generous amounts of landscaping and trees for aesthetics and shading;

• landscape design - use of indigenous with non-indigenous species and inclusion of semi-mature trees to help offset the loss of mature vegetation. Forty five species of grasses, groundcovers and shrubs will be used;

• butterfly attracting vegetation - butterfly gardens to tie in with the Community Wildlife Project. For more information read the Community Wildlife Fact Sheet on the project website: https://r2palliance.com.au/resources/publications;

• longevity - installation of irrigation will assist with growth; and

• environmental guidelines - species selection adheres to safety standards for proximity to the North-South Motorway.

Landscaping commenced in July 2020, with the construction of footpaths, Shared Use Paths and compacted rubble verges, installation of irrigation, laying of turf and preparation of garden beds for planting. Garden vegetation and tree planting will commence in late 2020, and is expected to be complete by mid-2021, weather permitting.

Landscaping will take place along:

• South Road between Overland Road and Aruma Street (eastern side);

• South Road between Tait Street and the Regency Park Golf Course (western side);

• Regency Road between Naweena Road and Crossley Avenue (southern side); and

• Regency Road between Naweena Road and the TAFE SA Regency Campus (northern side); and

• the intersection of South Road and Regency Road.

Water-sensitive Urban Design Water-sensitive urban design (WSUD) promotes the sustainable use and re-use of water in urban environments.

WSUD measures include storage, treatment, use of runoff and water-efficient landscaping.

The R2P Alliance have incorporated high quality, low maintenance WSUD measures including:

• permeable pavements along the Shared Use Paths and footpaths to allow the water to drain through to tree roots and to minimise root damage;

• passive irrigation in the form of kerb cut-outs along roads. Surface runoff enters vegetated roadside swales and basins through these cut-outs;

• drainage basins and swales vegetated with grass in low-flow swales to provide improved stormwater quality and amenity; and

• less impermeable surfaces to reduce the overall volumes of runoff and contaminants that may enter downstream watercourses, including the Barker Inlet Wetlands and Gulf St Vincent.

Regency Road to Pym Street Project LANDSCAPING AND URBAN DESIGN

CONTACT

1300 110 906

www.r2palliance.com.au

info@r2palliance.com.au

FACT SHEET

Urban design The R2P Alliance urban design approach is based on the Office for Design and Architecture South Australia (ODASA) Principles of Good Design. The R2P Alliance key strategies are:

Integrated infrastructure Create an integrated urban design that ties the North-South Motorway corridor into the local community by: • using design to break up large areas of

concrete; • designing the road corridor to have green and

functional open spaces; and • using landscaping for stormwater detention.

Accessible infrastructure

Create an easily accessible network for pedestrians and cyclists by: • understanding community needs in and around

the area to ensure connectivity; • urban design features, such as the pedestrian

and cyclist overpass; and • clear connections between ramps and

pathways to provide easy navigation.

Green infrastructure

Maximising planting and WSUD in the corridor to provide shade, amenity and improved environment by: • maximising space for planting along the

corridor including separation between pathways and the road corridor;

• allowing for direct stormwater runoff from surface roads into grassed detention basins; and

• using grasses that do not require irrigation. Safe infrastructure

Ensuring infrastructure is safe and welcoming to users by: • minimising environmental clutter through use of

bold and simple architectural; • a landscape of clear trunked trees with low

buffer planting to maintain clear sightlines; • clear sightlines maintained on the pedestrian

and cyclist overpass through use of stainless-steel woven mesh fabric; and

• attractive and functional pedestrian connections under the Regency Road overpass.

Enduring infrastructure

Create a simple, elegant and timeless urban design by: • durable low maintenance material selections

that achieve a long design life; and • using pops of colour to add light and attraction

to urban elements.

Example of vegetated swale

Regency Road to Pym Street Project LANDSCAPING AND URBAN DESIGN

CONTACT

1300 110 906

www.r2palliance.com.au

info@r2palliance.com.au

FACT SHEET

Plant and tree species Enhancing amenity and habitat is an important objective of the R2P Project that is considered throughout the species selection process. The Department for Infrastructure and Transport, ODASA and the City of Port Adelaide Enfield reviewed and approved the species selection.

The species selection is based on the following factors:

• hearty and requires minimal maintenance;

• native to the area;

• drought tolerant;

• contribute to local biodiversity; and

• variety of leaf textures for visual amenity.

Upon approval of the species selection, the R2P Project commenced the growing and sourcing process.

Shrubs, groundcovers and grasses are propagated and take approximately six to nine months to reach the required size of up to 10cm tall (approximately 140 litre pot).

Trees are sourced from local growers who have pre-grown the species for up two years to reach the required size of up to 1.2 metres tall (approximately 45 litre pot).

When complete, landscaping will span over 29,000 square metres and comprise of:

• 43,603 plants including 16 species of shrubs and 19 species of groundcovers; and

• 512 trees including 10 deciduous and native species.

Plant establishment will vary across the species of plants and trees, however the expected times to reach full maturity are three to five years for shrubs, groundcovers and grasses, and 15 – 20 years for trees.

Growth rates are approximate as natural elements like location, light, water and temperature will factor into their establishment.

Permanent irrigation will be installed in the landscaping. This will support species that are more suitable to residential neighbourhoods.

This image shows an example of a detention basin and surrounding planting from a completed project.

Regency Road to Pym Street Project LANDSCAPING AND URBAN DESIGN

CONTACT

1300 110 906

www.r2palliance.com.au

info@r2palliance.com.au

FACT SHEET

The following images, taken by the landscape contractor and grower who are providing the stock, show plants being grown at the nursey ready for planting, showing the size of the plants and trees at time of planting.

CONTACT

1300 110 906

www.r2palliance.com.au

info@r2palliance.com.au

Regency Road to Pym Street Project

Landscaping map – proposed landscaping, south of Regency Road

Landscaping map – proposed landscaping, north of Regency Road