Pros

Cons

*Note: Centre Island shown with added speed cushions

Pros

• Reduction in vehicle speeds
• Prevent drivers from overtaking others
• Can provide a refuge for pedestrians and cyclists crossing the road
• May visually enhance the road through landscaping and reducing the straight/wide feel of the road

Cons

• Prohibit or limit access and movement from driveways
• Remove/reduce on-street parking adjacent to the islands
• May create squeeze points for cyclists
• Not particularly effective at reducing through traffic

Pros

• Provides a refuge for pedestrians and cyclists crossing the street
• Separation of vehicles in opposing traffic lanes thereby reducing the probability of head-on collisions
• Prevent drivers from overtaking others
• Can visually enhance the street through landscaping

Cons

• May require significant amount of on-street parking to be removed
• Likely to prohibit or limit access and movement from driveways
• May create a squeeze point for cyclists

*This may have zebra line marking or a yellow flat top, depending on crossing usage

Pros

• Significant reduction in vehicle speeds and crashes
• Provides a designated crossing place for pedestrians and cyclists
• May reduce vehicle/pedestrian and vehicle/cyclist conflicts
• May discourage through traffic

Cons

• They may be uncomfortable for road users when negotiated at high speeds
• May incrementally increase travel times (by seconds)
• Limited use linking to footpath and shared path crossings
• May require localised drainage upgrades

Pros

• A significant reduction in vehicle speeds and crashes at treated intersections
• May discourage through traffic when used in series
• No on-street parking loss
• Safer place for pedestrians and cyclists crossing at intersections

Cons

• Limited to use at intersections
• Ineffective at reducing vehicle speeds and through traffic unless used in series
• May incrementally increase travel times (by seconds)
• Limited use linking to footpath and shared path crossings
• May require localised drainage upgrades

Pros

• Reduction of vehicle speeds on approach to and through the intersection
• Reduction of vehicle conflicts and crashes at intersections
• Improve traffic circulation at intersection
• Enhancement to the appearance of the road with landscaping

Cons

• Unlikely to reduce vehicle speeds away from treated intersection/s
• Unlikely to reduce through traffic
• Remove/reduce on-street parking at intersection
• Relatively expensive and may require significant changes to road reserve space, drainage and private property acquisition