and benefits? Accurately modelling the effects of introducing widespread, large scale infrastructure treatments is extremely difficult. Table 1 however summarises the potential benefits and costs of different infrastructure treatments. It also provides a guide as to where treatments might be applied on the network: Countermeasure Expected Expected Where Benefit Cost 2+1 configuration $$$ Highest volume, strategically important roads Centreline barrier $$$ Highest volume, freight and regional access routes Highest volume, freight and regional Wide centreline $ access routes where centreline barrier not feasible Highest volume, trunk, freight and regional access routes where above Sealed shoulders treatments not possible $ Highest volume, trunk, freight and regional access routes where above treatments not possible Audio tactile line marking separation* $$$ Highest volume, trunk, freight and regional access routes Highest volume, freight and regional access routes Roundabouts* $ Discrete sites if warranted on lower order roads No turn* Where viable turn lanes* Entire network Highest volume, trunk, freight and regional access routes Plateaus* Any road in a built up area if warranted $ Intersection treatments * Table 1 Effectiveness and cost of Safe System infrastructure treatments in reducing
and benefits? Accurately modelling the effects of introducing widespread, large scale infrastructure treatments is extremely difficult. Table 1 however summarises the potential benefits and costs of different infrastructure treatments. It also provides a guide as to where treatments might be applied on the network: Countermeasure Expected Benefit Expected Cost Where 2+1 configuration $$$ Highest volume, strategically important roads Centreline barrier $$$ Highest volume, freight and regional access routes Highest volume, freight and regional Wide centreline Sealed shoulders Audio tactile line marking $ access routes where centreline barrier not feasible Highest volume, trunk, freight and regional access routes where above treatments not possible Highest volume, trunk, freight and regional access routes where above treatments not possible separation* $$$ Highest volume, trunk, freight and regional access routes Highest volume, freight and regional access routes Roundabouts* Discrete sites if warranted on lower order roads No turn* $ Where viable turn lanes* $ Entire network Plateaus* $ Highest volume, trunk, freight and regional access routes Any road in a built up area if warranted * Intersection treatments Table 1 Effectiveness and cost of Safe System infrastructure treatments in reducing
Towards_Zero_Discussion_Paper_web.docx