Interpave Planning with Paving 2016 by Marshalls

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planning and place shaping the planning framework instigated by the 2004 planning reforms government continues to encourage a shift away from planning as a narrow regulatory system towards a positive way of shaping places and communities this approach requires local planning authorities lpas to take on the role of ‘place shapers’ both in producing local policies and in determining applications for development the introduction of local spatial plans in 2004 sought to foster positive ‘place making’ and this aim will continue with the new system of local development frameworks launched in the 2007 white paper planning for a sustainable future under the new regime lpas will be able to exercise their place-making role with more flexibility using supplementary planning documents such as master plans and design codes the development of design codes for external spaces and assessment of individual designs will be informed by the manual for streets mfs described by

precast paving principles in the previous section we have seen how adopted guidelines such as the manual for streets are linked to current and imminent planning policies and the positive place shaping role of planners via design codes this section aims to demonstrate how modern precast concrete paving and kerb products from interpave manufacturers meet all the requirements of these guidelines opening the door for their addition to design codes and specification on a wide range of projects visual characteristics and design flexibility regeneration of bristol city docks area with precast concrete paving and kerbs distinct modular units and designed variations in colour texture and shape break up areas giving visual interest and a human scale not possible with monotonous formless materials such as asphalt in recent years interpave manufacturers have transformed this concept moving away from the simple regular patterns and colours of the 1970s and 1980s they continue to expand an

sustainability the recently launched bre green guide to specification provides independent endorsement of the low environmental impact of precast concrete paving particularly in comparison with imported materials it rates a wide range of elements from ‘a+’ for best environmental performance to ‘e’ for the worst three different paving scenarios are considered covering pedestrian areas including communal spaces walkways and garden paving lightly trafficked areas such as car parking heavily trafficked areas for heavier vehicles or repetitive car traffic the same three scenarios – with identical results – are applied across the six different building types considered by the green guide but the ratings also provide essential guidance for local authorities to exercise their responsibilities for sustainable materials on roads and public spaces unrelated to particular buildings the summary environmental ratings for the various precast concrete paving

concrete block permeable paving sustainability charter with wide ranging key performance indicators they have senior managers and directors specifically tasked with executing sustainability policies and continue to explore ways of improving performance in all areas and demonstrating that performance to stakeholders recycling reducing waste and responsible use of resources all form part of this ethos it is also worth remembering that their precast concrete paving products are manufactured locally on modern automated manufacturing plant interpave manufacturers form an essential part of the local economy – generating sustainable employment – and community localisation also minimises transportation impacts of both manufacturing materials and supplied products and provides effective national coverage more information on sustainability issues can be found at precast concrete cellular units allow grass growth for a softer landscape appearance while

compared with standard chamfered blocks concrete block paving today can make use of varying sized modular units with a softer edge flag paving precast concrete flags are produced in a wide range of square or rectangular sizes offering extensive opportunities for different laying patterns sizes range from 300 x 300 to 900 x 600 mm offering designers the potential to use elements of a larger scale than block paving flags can be divided into three main categories standard small element and decorative all but decorative are manufactured to bs 7263 part 1 or bs en 1339 in standard sizes a demonstration of the flexible capabilities of concrete flags to shape external spaces supply a full range of tactile surface paving to inform blind and partially sighted people of hazards and routes to facilitate full accessibility as discussed later it is important that these are exactly as prescribed in standards to ensure clear universal communication concrete flag paving can form the basis of a lively

small element precast concrete kerbs offer additional flexibility with layouts while factory applied finishes can provide long-term road markings precast concrete kerbs systems are available with integral drainage facilities new versions of the kerb solution continue to be developed to meet specific demands for example high kerbs with special profiles offer a simple cost-effective system for containing vehicles on the road contributing towards better road safety and protecting pedestrians other precast concrete kerb products have been developed to facilitate access by wheelchair users people with prams the ambulant disabled and others onto buses here special kerbs overcome the problems associated with height variance between footway and the various entrance levels of public transport vehicles while also minimising the gap by facilitating easier accurate vehicle positioning the extensive established precast concrete kerb industry has the resources to continue meeting new demands unlike

designing with precast paving design techniques while the manual for streets and other guidance documents encourage innovation they also demand consideration of various other criteria when designing external paving selection of paving materials to provide ‘local character’ is considered essential – and may well define the palette of materials set by planning authorities in master plans and local design codes as discussed earlier however communication is also important so that the design is self-explanatory in terms of both navigation and use of different areas perhaps involving combinations of different colours styles patterns and textures the traffic speed reduction effects of block paving have been clearly demonstrated while kerbs are well recognised by all as a vehicle/pedestrian delineator – and still effective when set flush with the paving however design restraint may also be needed to avoid a confusing overpowering design and a balance struck between

accessible design the manual for streets and other guidance stress the importance of inclusivity and accessibility for all whilst there is on-going debate about accessibility and shared external spaces firm guidelines are provided for other paved areas in bs 8300:2001 design of buildings and their approaches to meet the needs of disabled people – code of practice bs 8300 forms the basis of building regulation requirements which apply to those features outside the building needed to provide pedestrian and wheelchair access to the building entrance from the edge of the site car parking setting down points and for non-housing from other buildings on a site of course the design principles involved can also be applied to other external areas to ensure accessibility for all specific guidelines are provided in bs 8300 for on-street parking off-street parking ‘level’ approaches ramps and steps it is important that these elements are accurately designed in detail as an

design features all the guidance documents agree that paving surfaces must be • firm stable and even not loose materials such as gravel • durable • slip resistant • non-reflective precast concrete flags and paving blocks used in conjunction with concrete kerbs easily meet all these criteria as fully engineered products manufactured under controlled conditions they consistently provide • accurate sizing with controlled joints to ensure an even surface • non-slip characteristics in dry or wet conditions recognised in bs 8300 • proven long-term performance and durability • reinstatement without evidence to give an even surface after below-ground work • wide variety of colours and textures – particularly for ramps and tactile surfaces – with uniform frictional characteristics the extensive variety of different precast concrete paving products enables designers to use them in combinations and perhaps with planters

introducing a contrasting course where patterns change as well as at edges allows a neat transition where cutting is needed careful selection of ironwork is essential here special manhole covers have matching paving inset detailed design and execution as with any construction operation detailing of edges insertions level changes and junctions within paving should not be left to site operatives but resolved by designers with precast concrete paving well-established solutions are readily available from interpave technical guidance or members’ websites via chamber covers are available to inset precast concrete paving to match surrounding areas the manual for streets recommends that services are segregated within corridors where possible a technique which is particularly important to keep them away from permeable paving for more information visit these solutions include use of string courses to contain inspection chambers define edges to paving

heidelbergcement group 60 charles street leicester le1 1fb united kingdom e t 0116 253 6161 f 0116 251 4568 interpave is a product association of the british precast concrete federation ltd published with the support of the concrete centre t 0116 253 6161 f 0116 251 4568 e t 0116 222 9840 f 0116 251 4568 e t 0700 4 822 822 e © bpcf ltd