One of the key considerations in the design of DFence has been to develop a product that meets all relevant health and safety, and legislative requirements. Please use the links below to check the current Transit New Zealand regulations for the construction and use of safety fences and barricades. Building codes for swimming pool fencing is also included.
In 2012 DFence requested a letter of compliance for DFence from the NZTA. This was supplied once an attachment point at both the upper and lower levels was included. DFence is supplied with clips linking panels together at both the lower and upper points of the fence panel. The bottom clip is placed around the panel like a circlip linking the panels at the lower level. The clips have enough movement in them to work on undulating ground as well as on flat ground.
Safety fences are required to prevent people from gaining access into a hazardous area. This is particularly important at unattended worksites.
Yellow flashing warning lamps must be placed on safety fences and barricades when they are used to protect a hazard less than 30 metres long on level 1 roads. A lamp must be placed on at least each corner of the safety fences to make the hazard more identifiable.
On all levels of road the delineation of hazards parallel to the direction of the traffic and more than 30 metres long shall be by safety fence s or barricades fitted with suitable reflectorised delineators.
The Code of Practice recommends the use of 200mmx150m Retro-Reflective Chevron delineators.
These should be installed at ten metre spacing and at every change of direction of the safety fence or barricade.
Plastic Water filled Barriers (new in August 2012)
Plastic water filled barriers that do not conform to the requirements of NZTA M23:2009 must not be used as barriers
However plastics water filled barriers may be used as a safety fence under the following conditions
The design and installation must comply with the design requirements of safety fences above
Must be separated from the live lane by a minimum of 1m lateral safety zone and a row of traffic cones at appropriate spacings
Must only be used in a speed zone of less than 65km/hr