PAINT THE TOWN GREEN: BUILDING UNIQUE RAIL TRACKS USING GREENERY

Australia's cities are focused – now more than ever – on building sustainable spaces that can stay cool in extreme heat, and boost canopy cover for the region. Light rail presents a great way for these areas to increase greenery by prioritising green track installation in urban planning.

Green tracks, using lawn or sedum, retain a large amount of rain water and bind fine particulate and road dust to improve the micro environment in urban centres. Moreover, recycled rubber encapsulation of rail ensures primary airborne noise and vibration is reduced significantly.

The STRAILastic Top of Rail (TOR) Light Rail system provides, not only the opportunity for new routes to be greened using its various green track options, but also simple, cost-effective green track conversion of ballasted track using the STRAILastic R Green track design.

STRAILastic TOR has helped provide Sydney’s T1 Dulwich Hill Line and Melbourne’s Canterbury Road, St Kilda line with a new lease on life and created a cheaper solution for extensions.

Adapting To Temperature Changes

STRAILastic TOR provides a track system that is stable and reliable in Australia’s unpredictable climate. The benefits of the vulcanised rubber solution extend beyond its resilience and stability. While made from 70 per cent recycled rubber, the outer cover of virgin rubber contains UV, ozone and fireresistant materials to withstand the elements.

Cities across Australia can have rapid temperature changes. Melbourne often has four seasons in one day with temperature variations of 10 degrees or more in an hour. A southerly change in Sydney can turn a 40°C day into a 20°C evening, and South-East Queensland’s tropical storms can rapidly drop the mercury.

Besides wreaking havoc on what to wear, these temperature variations place significant stress on tram and light rail track infrastructure, whether it be asphalt, pavers or concrete. Installing ‘green tracks’ can mitigate these rapid temperature changes, reducing the high stresses by expanding and contracting.

Andreas Göschl, STRAILastic’s International Operations Director, said, “Based on 40+ years experience in moulding vulcanised rubber, the STRAILastic TOR track systems have a high temperature stability, and easily manage the expanding and contracting of temperature ranging between -40°C and +90°C, with a glass transition point of -55C, ensuring a stable TOR product under normal operating conditions.”

Fits Like A Glove Against Rail

Installation is simple, with the precisely moulded selfclamping chamber filler fitting like a glove against the rail without glue, and finishing level with the railhead. It withstands the wear and tear of traffic, is easy to undertake rail replacement, and has a non-slip moulded surface for bikes and pedestrians.

Its small tolerances avoid gaps, preventing entry of water, sand, sediments, and dirt between the rail and the chamber filler. This ensures there are no electrical conductivity issues or corrosion of the rail web.

Chamber-filling elements are common in many light rail networks, but not all are created equal.

“STRAILastic does not use polyurethane as it is more like plastic, expanding when warm and shrinking when cold, reducing the life of the track,” Mr Göschl said.

STRAILastic has experience in long-life light rail track damping in over 60 cities and with 300km of light rail track, keeping city’s trams and light rail quietly moving.

For more information, please visit https://www.strail.de/en/

New STRAILastic_mSW 730

mini soundprotection wall with high absorbing surface

The new version of the STRAILastic_mSW adds a higher wall to the product range. This version is used for train speeds of up to 120 km/h.

Benefits at a glance

¬ No foundation required for installation

¬ easy and quick installation

¬ Short delivery times > noise hot spots can be supplied with products quickly

¬ Closer to the noise source than any other sound protection

¬ Break-proof due to fibre-reinforced rubber compound with a cover layer of virgin rubber > UV and ozone resistant

¬ No material fatigue caused by vibrations or pressure and suction forces

¬ No problems with oversized loads