AVS. Arkitektúr verktækni skipulag - 01.09.1995, Síða 74

AVS. Arkitektúr verktækni skipulag - 01.09.1995, Síða 74
E N G L I The issue of Arkitektúr verktækni og skipulag (Architecture, Technology and Planning) focusses on lcelandic expertise in construction. PAGE 10 LEARNING FROM OUR FOREFATHERS Guðmundur L. Hafsteinsson writes about what today's architects can learn from the building traditions and skills of the past, i.e. the methods of building with turf. These old buildings themselves had many technical draw- backs, were cold and leaky, etc, but the shapes of the old farmhouses, and turf roofs, have provided inspiration to architects, and stacked-turf walls have been widely used in landscaping. Above all, the turf house provides an example of architecture that fits natu- rally into the landscape, rather than dominating it. PAGE 13 WE MUST HAVE FAITH INTHE YOUNG Páll Sigurjónsson, managing director of contractors ístak points out the im- portance of applying Icelandic exper- tise in the international sphere. He suggests that young people need to be encouraged to show what they can do. PAGE 15 RESEARCH IN THE BUILDING INDUSTRY - ICELANDIC EXPERTISE Difficult conditions in lceland mean that a vast amount of research has been carried out by the Building Re- search Institute into the best ways to build hard-wearing structures. Re- search has been done on alkali prob- lems in concrete, and water-resistant materials have been developed to protect surfaces from weathering. Lightweight concrete has been deve- loped, using pumice, and work has been carried out to develop a viscometer to measure the viscosity of concrete. PAGE 18 FIBRE -OPTIC TECHNOL- OGY S H S U Engineer Örn Jónsson writes about the introduction of fibre-optic technol- ogy by the lcelandic Post and Tel- ecommunications Administration. The fibre-optics department of P&T had laid nearly 3,000 km of fibre-optic ca- ble since 1985. As far as possible, work on laying the cables has been contracted out: in some cases, the cable can be plough- ed under the ground, while in other areas excavation work, or explosives, have been required. Iceland is a par- ticipant in the CANTAT-3 submarine cable between Canada and Europe, which has revolutionised lceland’s potential in international communica- tions. PAGE 20 IS OUR KNOWLEDGE IN THE BUILDING INDUSTRY WORTH ANYTHING? Helgi Hafliðason draws attention to the question of marketing lcelanders’ spe- cial skills and expertise abroad. While lcelanders have learned much from other nations, they have had to adapt that knowledge to lceland’s unusually difficult environment. Icelanders are already active on an international level in connection with the fisheries, but the authorfeelsthat broad-based collabo- ration to market lcelandic expertise would be fruitful: e.g. Icelandic con- sultancy on development of fisheries could lead to projects in shipbuilding, construction, the provision of protec- tive clothing, etc., all fields in which the lcelanders could offer their serv- ices. PAGE22 ICELANDIC GEO- THERMAL EXPERTISE Physicist Valgarður Stefánsson writes about lceland’s strong position in the utilisation of geothermal energy. To- day, geothermal energy provides 43% of lceland’s energy needs, as against HEP 16%, oil 38% and coal 3% (Fig.1). The lcelanders have developed vari- ous kinds of specialised technology in drilling for hot water, and also in its application in district heating systems. M M A R Y The savings represented by use of geothermal energy are shown in Fig.3: heating by geothermal energy is no more than half the price of oil heating, and the comparison is even more fa- vourable at times of high oil prices. Hitherto, lcelanders have served as consultants in development of geothermal energy projects abroad, but more marketing of these special skills is required if they are to yield large-scale export earnings. PAGE 26 THE PRIVATE CAR AND CITY PLANNING Haraldur Sigurðsson considers the traffic policy of the City of Reykjavík. He puts forward the view that the City of Reykjavík has placed too high a priority on free flow of traffic for pri- vate cars, at the expense of building up compact districts with accessible services. He compares the narrow, sheltered, cosy streets of the old part of the city with the exposed, widely- dispersed new suburbs. He argues against the planners’ calculations on the necessity of building ever more motorways and overpasses, and their claim that faster, freer-flowing traffic saves time, and hence money. He suggests that a different approach should be taken to the problem, for instance by offering alternatives to the private car, planning districts where people live close to the workplace, etc. He points out that this is already hap- pening in cities abroad. PAGE32 CARS AND TRAFFIC Bjarni Reynarsson considers the ways in which the authorities could achieve a reduction in use of private cars, which is much greater in Reykjavík than in cities in neighbouring coun- tries. The table on p.33 shows the nurmber of inhabitants per car for the Nordic capitals, and the graph shows growing car ownership and falling use of buses. As much of 90% of travel within the city is believed to be by pri- vate car, which is similar to the pat- tern in American cities. The author 72
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