The Cookham Plan Findings and Recommendations Housing and Development Group 6. MOBILE TELEPHONES |
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6 MOBILE TELEPHONES
6.1 Remit
Consider the issues associated with the siting of mobile telephone masts.
6.2 Background
Although mobile telephones are now a widely used and important part of life, the siting of base stations and masts provokes great controversy on both health and aesthetic grounds. Mobile telephone companies are required by their government granted licences to achieve specified levels of population coverage (for example 80% of the UK population by December 2007 for 3G networks) and they are given both access to highway authority land and concessions within the planning process to assist them in doing this. The drive for increased coverage coupled with the relative ease of gaining permission means that mast development proposals are a regular and unwelcome feature of life for many people.
Cookham has been subject to a number of proposals over the years and pressure for further installations is likely to continue in the future. In order to address this issue in the plan, we need to start with a clear understanding of how mobile telephones work, current coverage, potential developments, the planning process and factors affecting the choice of sites for masts.
6.3 How do mobiles work?
The All Party Parliamentary Mobile Group considered mobile phone masts in their July 2004 report ( 6.1). This provides a useful description of how mobile telephone systems work:
Mobile phones operate on a system of cells, each cell supported by a radio base station, which is a facility that provides transmission and reception for radio systems. Each of the five mobile phone operators divides the UK into thousands of individual geographic areas or 'cells'. The cells overlap at the edges to prevent holes in coverage. There are three types of cell:
The systems are demand-led, and to achieve coverage, each cell has to be provided with a base station, which hands the calls over from one area to another. If they are too far apart, calls are interrupted or dropped when mobile phone users are on the move. Increased usage of mobile phones also results in a higher demand for base stations, as each has a limited capacity, and this can be expanded by the addition of more base stations within macrocells or microcells.
Radio base stations are commonly called masts, and although the terms are used interchangeably, they are in fact two different things. Radio base stations are sites that enable mobile phones to work. They can be big or small, and always have transmitters or receivers in a cabin or cabinet connected to antennas nearby. A base station (i.e. transmitters, receivers and antennas) can be mounted on a large mast or tower, on existing buildings, rooftops or in street furniture. There are currently about 40,000 radio base stations in the UK.
Strictly speaking, a mast is the freestanding structure which supports antennas at a height where they can transmit and receive radio waves. A mast is typically 15m high and plays no part in itself in the transmission of radio waves. A mobile phone is a low-powered two-way radio, converting human voice and data messages into radio waves. When making a call, the radio signals are transmitted from the mobile phone to the nearest base station. Once a signal reaches a base station it is then transmitted to the main telephone network where it is transferred to the network of the person receiving the call. The cells in a new third generation (3G) network will be smaller because 3G uses a higher radio frequency. These cells also expand and contract in size depending on the number of simultaneous calls being made. For this reason, 3G cells will have to overlap more than the current 2G cells, and although it is anticipated that operators will be able to re-use some of their existing infrastructure, they will also need to develop a substantial number of new sites.
There are at present 3 main systems in use in Britain. These are:
6.4 Current Coverage
Mobile telephone providers are regulated by OFCOM who provide details of mast locations on their web site at http://www.sitefinder.ofcom.org.uk/. Figure 6-1 shows the location of masts around Cookham. The figure includes the positions of masts which service the UTMS (3G), GSM (2G) and TETRA networks.
The mobile telephone companies also produce maps showing their local coverage. These are included in Figure 6-2, Figure 6-3, Figure 6-4, Figure 6-5, Figure 6-6 and Figure 6-7.
Figure 6-1 Location of Mobile Telephone Masts in and around Cookham February 2007 (Ofcom) click on map for larger image Figure 6-2 Mobile Coverage – 3 (3 website) Figure 6-3 Mobile Coverage - O2 (O2 web site) Figure 6-4 Mobile Coverage – Orange (Orange web site) Figure 6-5 Mobile Coverage – Vodafone (Vodafone web site) Figure 6-6 Mobile Coverage – T Mobile GSM (T Mobile web site) Figure 6-7 Mobile Coverage – T Mobile UTMS (T Mobile web site) click on maps below for larger image As can be seen, reception is generally reported as good within Cookham with almost complete coverage for GSM and most areas being able to receive 3G services.
Residents were asked to confirm their experience of mobile telephone signal strengths in the Cookham Plan Questionnaire. 609 responses were received to question 13 which asked people to report the signal strength for any applicable networks in and around their homes. Responses were expressed as a percentage of the maximum possible signal strength indicated by their handset (e.g. 3 out of 5 bars represents 60%). The results are shown in Figure 6-8 and Figure 6-9. These appear to bear out the operators maps which show that there is generally good coverage across Cookham. Given the extent of choice available to consumers, it seems reasonable that most residents should be able to obtain a reasonable signal strength at home should they need to.
Figure 6-8 Average Mobile Telephone Signal Strengths (GSM Networks)N click on charge for larger image
Figure 6-9 Average Mobile Telephone Signal Strengths (UTMS (3G) Networks) click on charge for larger image
There were only 42 responses for 3G networks which presumably reflects the relative newness of this technology. Nevertheless, this appears to indicate that there is a generally acceptable level of signal for these services.
6.5 Potential Developments
6.5.1 Demand
It is very difficult to anticipate how the use of mobile telephones may change over the 10 to 20 year period of the Cookham Plan. In the short to medium term, it seems likely that demand for new handsets will slow as the market becomes saturated but against this, new applications may emerge as technology changes (for example, as a part of future road pricing systems). It also seems likely that demand will transfer from GSM to 3G if price levels fall and handsets become more able to access web based material. This suggests that there may be continued pressure to build new 3G masts given the shorter ranges, more limited capacity and reduced cell sizes associated with them. Further increases in local demand for mobile telephony could come from increases in home working or in the bandwidth requirements of visitors to Cookham (for example the use of mobile computing by visitors to the Odney Club and Moor Hall).
6.5.2 Technology
In the longer term, demand will stabilise and it is likely that there will be some consolidation amongst operators. Such a scenario could lead to a reduction in mast sites as companies seek to cut costs by reducing their infrastructure.
Against this is the likelihood that a new generation of mobile technology will emerge offering higher data download speeds and / or reduced transmission power will emerge. It is to be hoped that such developments could re-use the existing infrastructure rather than needing a brand new network like 3G did.
Over and above these possibilities, there may be step changes in technology arising from (for example) greater integration between WiFi access points and mobile telephony or greater use of satellite systems.
The impact of these on Cookham is almost impossible to foresee at this time.
6.6 The Planning Process
Under the Telecommunications Act 1984 and the Communications Act 2003, mobile telephone companies have powers granted to them by Ofcom which allow them to construct infrastructure on public land (i.e. roads and streets) and to take rights over private land. These powers are set out in the Electronic Communications Code (ECC)( 6.2) and they include certain relaxations of planning requirements where the infrastructure can be classified as ‘permitted development’. In general terms:
Whichever planning route a development follows, there is little doubt that many local residents hold real fears about its appearance, effect on house prices and on their safety. Unfortunately, the last two of these factors are not taken into account under present planning laws.
6.7 Health and Safety concerns
So far, this review has dealt mainly with factual matters but as we move tohealth and safety concerns we encounter a combination of fact and emotion.
On the emotional side, people are concerned about the potential effect of radio transmissions and of long term exposure to them. Not withstanding that there has been over 50 years of radio and television transmission from much more powerful antennae and with no reported ill effects and that most people are prepared to use mobile handsets (which produce higher levels of exposure than typically arise from masts), there are still significant numbers of people who hold deep seated concerns about the safety of masts.
To date, the main source of information about the safety of mobile telephones has come from the Stewart Report( 6.3). Published in 2000 under the Chairmanship of Sir William Stewart, the report of the Independent Expert Group on Mobile Phones considered the effects on human health of handsets, base stations and transmitters. The report recognised that, with mobile phone technology still in its early stages, potential effects remain largely unknown. Given the impossibility of proving that mobile phone systems are safe and that time will be required to discover if they pose any specific risks, the report recommended a precautionary approach in all matters (including the use of handsets). Findings of particular relevance to the Cookham Plan were:
Although a number of these points would require legislation to be enforceable, they provide a useful framework for considering how mobile telephone infrastructure development around Cookham may be managed in the future.
6.8 Factors to be considered in siting masts
From a telephone company’s point of view, the main factors influencing the choice of sites are:
6.8.1 National planning guidance
National Planning guidance is given in Planning Policy Guidance 8: Telecommunications (PPG8)( 6.4). The main factors to be considered are:
Overarching all of these factors is the Government’s general policy on telecommunications which is ‘to facilitate the growth of new and existing systems’ - i.e. where there is a need, some form of development will normally go ahead.
6.8.2 Local planning guidance
Local Planning guidance is given in the Berkshire Structure Plan policy TC1 (adopted by RBWM in1995) and RBWM’s own policy TEL1. These state:
Policy TC1
Planning permission will normally be granted for telecommunications development. Where there is potential conflict with environmental objectives telecommunications development will be allowed provided:
Policy TEL1
The Borough Council will only grant planning permission for telecommunications development where:-
Details of how the planning department interpret these policies is set out in RBWM’s publication Interpretation of Policy TEL1 (Telecommunications Development) Final Guidance (December 2000)( 6.5).
6.9 Key Findings
6.10 Action Plan click on chart for larger image
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