eco-city design

the theory

walkable centres

public transport

road layout

freight

density

sustainability

more

Road Layout

As well as making our cities more walkable and improving public transport, we also need to make driving less convenient.  Not too much; we still need our cars for travelling outside of the city and for moving heavy goods.  But we need to break the habit of jumping straight in our cars the minute we leave the house.

In Cloverleaf City this is achieved by having residents park their cars about 2 minutes away from their home.


Ring Road

The ring road, 4 central car parks and 24 peripheral car parks function as they would in any other city.

They are lined with trees and thick undergrowth to hide them from view.  And porous road surfaces and lower speed limits keep traffic noise to a minimum.

Trees and thick undergrowth both hide traffic from view and help reduce noise levels


Interior Roads

Roads within districts are different.  Rather than shorter journey times for drivers, the emphasis is on maintaining a pleasant pedestrian environment.

Circular car parks in outer districts provides nearby parking for residents

Also, they are only for residents travelling between the city and the world beyond.  They are not for movement within the city; we have the trolleybus network for that.

This is ensured in 3 ways:

  • Residents only.  Excepting short stay bays for deliveries, all parking spaces would be allocated, with residents having to pay extra for them.  Visitors to a district would park in the peripheral car park.

  • Unconnected.  The roads never lead directly from one district to another.

  • Slow.  Speed limits would be no higher than 20mph, and cars would have to yield to both trolleybuses and pedestrians.

Every house still fronts onto a pedestrian street.  Buildings adjacent to roads and car parks would be orientated away from them, with their gardens acting as a barrier between.

Close up of a circular road and car park

Raised intersections and speed bumps slow cars further where roads cross pedestrian paths, and pedestrians have right of way.

Where the road crosses over the central boulevard, cars would leapfrog from the road to the first refuge, then to the second refuge, and finally back onto the road, yielding to pedestrians, trolleybuses and pedestrians in turn.

Refuges, shown here in dark grey, allow cars to cross the central boulevard without impeding trolleybuses or pedestrians

Light industry would be built along the straight road connecting the circular car park to the peripheral car park, with housing at the ends to maintain a pleasant pedestrian environment on paths cutting across.

Light industry along connecting road


Going Carfree

Cloverleaf City is actually 2 designs in 1.

Once completed, it can be made fully carfree by removing all circular roads and car parks and building housing in their place, increasing the city's population to 150,000.

Carfree city design for 150,000 people

Residents would instead park their cars in the peripheral car parks, at most an 8 minute walk away.

To make this process easier, spaces in the circular car parks would only ever be rented, not owned by the residents themselves.

And circular car parks are built with just the right dimensions ...

Circular car parks should always be seen as temporary whether the city is to become carfree or not

... to be later replaced by housing.

Infill housing replaces circular car parks

As well as housing, new light industry would be built as shown below in blue.

A wider, but still low speed, road is maintained between the central boulevard and the peripheral car park for trucks

The city need never become fully carfree, but the option should always be there.

Continue

Home