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New ringroad at OslojordTaking the Raet rom E18 to E6Supervisors: Al Haukleand, Thea Hartann, Alice Labadin Students: Maia Gra AHO Autum 2009

Beore man settled upon the land, the ice lay thick and smoothing over Norden. Where the ice threw o its melt-ing waters and neatly collected materials o sand and rocks, belts o glaviskoal material piled up to a ra.10 000 years later, man had se ttled, and started molding the land to t his activity. Agricultural land evolved, or-estry and still under all this, lay the geology as a set o opportunities and shortcommings.To travel in Norway have been a choice between the boat and the winding, steep roads o the mouintains. Inmodern times the car and the railway have tried tting in to this. From the 1950 and -60 it has been possible tobuy a car or the normal inhabitant o Norway. The growth in numbers and use or cars have exploded in the last20 years. Somehow the transportation authorities have been lacking behind to rebuild old roads and in shapingnew trasees in the steep topography o Norway.

I do not know the uture, but the present is impossible to neglect. We ace a potential manmade global warm-ing, and the targeting o where we should change is told to be CO2 - a burning product. Maybe the cas e is thatuel will end and the uture holds other orms o transportation, but at present we are dealing with the act thatwe do drive cars, busses, trailers and vans. As it looks we will be continuing with that. The roads design and howmuch pollution it generates do matter. Good fowing trac at stea dy speed and with moderate elevations andturns to make is less polluting than ast acceleration, a lot o turning and climbing.

Looking at the population growth and transportation in the Oslo region we do deal with some sentras and somedesentras. The regional roads that ollow the land and the jord only have three passings. At Moss you can takethe erry to Horten, and aproxomately 3500 cars do that each day. At Drøbak, you can take a tunnel under thejord, 6700 cars do that each day (2008). The tunnel tells a story o politics, with are not too relevant. Originallythey estimated 4000 cars a day, and I guess they had no idea o the problems big vans would have with thesteepness. And then, we have the spaghethi o roads going in to the center ring o Oslo, contributing to pollu-tion, slow trac and parking problems.

Lets do a concept o three good markings - a way round and on the outside o Oslo designed to high regionalroad standard, a marking o the raet by placing the road at its line, which will preserve its story at places like Svel-vik, and enlighten the nearby areas o a skyline with windmills over the woods. Lets have a look at the new regi-nal road rom Sande over Svelvik to Drøbak.

Compleating the cirkle

The yelow streach represent the area where our road will nd its way to complete the cirkle.

The Raet is one o manny letower rom the ice age, it crosses rom north o Drøbakacross Hurum over Svelvik, and then the walley o Sande.Today quarries are the wisible parts o this, and the rest is under argiculturaluse or are woods.

Conseptdrawing o the regional road throu the woods o Hurum. The windmills will be a linear experiencehowering over the tops o the wood, marking the streach and singing steadely in the pressence o cars.



Road

The evolution o roads go rom the small track to and rom local earends; a drop by the neighbour, a visiting tothe shop, to the elds, and then back again. The road might pass near by housing, going through villages, climb-ing nearby churches and will wind its way around the topography.

Today the very local roads are rened by having a dead end or cars, or closing them out, letting the pedestrianshave more room and giving children room to play. Then we have the span rom the roads collecting the tracrom these, up to the big barrier o a “autobahn”, where you have problems passing or getting anywhere with-out entering.

The line o the roads have dierences due to where they are. A urban road, might ollow the quartals, having

charp corners and linear stretch between these. The speed is limited by this. A landly road will have curves olow-ing the topography, sweeping in the rythem o the s peed you are ollowing. Making a regional road, the lines andcrossings should take into consideration the speed and the need or both not being to disturbed and the need onot being bored by long mountanous stretch, and the increase in trac we have see n in the last decades - thetendencies are the same today.

The viaduct is quite close to the old idea o the aquaduct, used as we know it or the romans, 2000 years ago.The viaduct answer a problem when the road potentialy will become a barrier o wind, man, animals, water andsight. O the modern molding o the landscape we have the big ll, the cutting and the tunnel. These will help aast road in nding its way. New rules or tunnels, says that the tunnel will be double so cars don’t have to meettrac going the opposite way.

The analyses in this assigment is ast, unctional, and only the one o important is gathered here.

Three drawings with ideas to entering o the tunels.

Sande; quicklay and argicuturelandscap o heritage value

Analyses and type o road

Drøbak-HurumWildlie, consevationareas and the site quality o wegetation

Sande-RyggenTunels ideas

The thicknes o the linje represent the amount o trac that uses the road at a daily basis. The coloring reer to the glowing o heated iron - white is the hotest.

A old map o Ryggen and Svelvik. The querry o today have remowed hal o the landorm.It’s like digging out a landscape’s nose, removing it all.



An example road -the Viaduct o Crni-kal.

Below: A photomontage o the bridgespan and viaduct o Svelvik. The Viaduct is marking the old terreng o Ryggen.

Over and through the topography, climbing,digging, and roundabouts.

Consept o road

I will argue that the possible uture amount o cars and the high standard o a nice fowing road in this assign-ment wil be answered best in a 4 lane road, with a barrier between. The barrier makes head on crashes unexcit-ing. The space and the fow will be best by letting the lines and the view consider it as a big regional road as astart. The tunnels have anyway been double, and the bridges should be 4 lanes rom the start so they don’t stopthe fow o trac. The rest might be built in two steps, 2 lanes rst, and then 2 extras later on.

The roadstrech in plan.

Consept o roundabout, wich let the trac fow nicely in the road itsel. Ramps go up ordown to the roundabout.



A drawing o the typical walley eatures o Sandes topogray.

The litle man at the oot o the pilarsshow us the dimension o the vaductat Svelvik. Aproxomately 45 m high.

The walley o Sande streches nearly all the way up to Drammen. Severalrivers is running in the botom, and strong fows o winds go in the direc-tion o the walley. The animal lie at the seaornt is rich, and the botomothe walley is used or argiculture. Cause o quiqlay and the old argi-culture area north o the senter, the road is south o it. Pointet on highpilars it let the walley breath, and take a magnicent wiev o the gul onthe way.

Sande

0 100m 500m 1km

0 100m 500m 1km

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This is the start o the Roadat E18, Hanekleiva.



Svelvik og Ryggen

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0 100m 500m 1km

0 100m 500m 1km

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