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Hex City

hexagon 80

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seamless transport

The main focus of this model is the road, as a delimiting geographical feature and as a network of connectivity between distant hexagons. These arterial roads form an expressway or freeway that helps maintain a good flow of traffic within the city.

Subsidiary roads exist within the urbanized zones. Unmarked roads exist in the woodland and recreational zones for pedestrian use and in case of emergency. A subsurface rail system and bus service have also been outlined. The combination of these systems makes Hex City flow.

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description
seamless transport
environmental zoning
connected community
decentralized city
flexible design

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roads

To visualize how the one-way system works, imagine you are looking at two turning cogs that are touching. If you move one, you move the other in the opposite direction. We are going to take the clockwise turning cog to represent the traffic flowing around the perimeter of a hexagon.

As mentioned, all hexagonal have clockwise directional traffic; unlike the cogs that turn in opposite directions. If two roads (from adjacent hexagons) were to meet - there would be an accident. That is to say that the traffic from one hexagon is traveling in the opposite direction to the traffic of an adjoining hexagon.

If our hexagons where to be NEXT to each other, you would find a road where people drive on the right hand side. If this does not suit the target country, the design allows you to change the direction of the traffic, end of story.

So now we can see how the one-way roads forms virtual two way roads (with an urban area between them) when two or more hexagons are places near each other.





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no traffic lights

The node that connect three hexagons is basically one very large roundabout that sits in the middle of the three main roads belonging to the hexagons. Slip roads connect the roundabout to adjacent hexagons. The main road bypasses the roundabout [blue]. A slip road adjacent to the roundabout is used for changing direction [green]. You would only join the roundabout if you where to change hexagons [red]. The roads connects to the urbanized areas at several points avoiding the nodes.

The road system is raised from ground level, on man made raised land, and coccasionally passes over a subway or underpass. The road is raised to separate the road system form the local road system, allowing people (and vehicles) to travel freely under the main road wihout having to use signal crossings. The lack of perpendicular intersections means that traffic lights are not used on the main roads system. A speed control system, where vehicles arew asked to slow down to allow bottle necks to desolve, could easily be implemented. Traffic noise could also be easily reduced using sound barriers.

Although the design of the residential road layout may vary, this diagram shows how the residential area would operate without traffic lights: Residential road layout (direction). The design gives priority for traffic joining and leaving [red and green] the main roads. A two way road [orange] surrounds the hexagon. This road gives way at crossroads and to pedestrians making it safe and slow. We hope this road will be unpractial for journeys that dont originate or terminate in this residentail area, thus eliminating through traffic. This diagram illustrates the speed of the traffic [darker lines are faster]: Residential road layout (speed).

For a detailed diagram of a possible road layout see Residential road layout blueprint.

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distances

Navigating from one node of the hexagon to the other requires you to go all the way round the woodland and recreational zone. This is typical of all natural reserves and parks, you can't drive through it. Short trips by car are time consuming and costly. This negative aspect of using the car for short trips encourages the use of bicycles and pedestrian movement. Smaller electrically powered vehicles are permitted into the woodland and recreational zones.

Compared with the grid system, the travel distance between two random points (TD) is comparably longer or shorter depending on the actual distance (AD) between the two points.

Short journeys, where alternatives to car transport are encouraged (bike, bus), the grid system offers a shorter travel distance.
Long journeys, where alternatives to the car are encouraged (train, bus), the grid system offers a shorter travel distance.
Medium journeys, the target that Hex City is trying to cater for, the grid system offers a longer travel distance.

Travel time and energy consumption is reduced due to the underpass, slip roads and roundabouts that remove all need for traffic lights.

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rail

The rail system operates subsurface (cut-and-cover) lines between distant residential zones. The stations are located in the middle of residential zones providing access to two nodes and two parks per station and direct access to the local residents. Building stations or tracks near the nodes is to be avoided. Building stations and tracks in areas that attract LESS visitors due to geographical location is encouraged as it will encourage that area to prosper.

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bus

The bus system operates locally and as an express service. Local busses travel within urbanized zones avoiding the main roads. Three or more stops per residential zone (near the nodes and in the center of the residential zone) provide good access to the residents and commuters who use the train. Express busses will operate from the industrial and services zones and use the main roads only.

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