This drawing shows the standard cloverleaf interchange. Although advertised in
the 1950's as the ultimate intersection, it has lead to traffic problems and is
being redesigned. The circles used to enter and exit the highways slow the
traffic and this slow traffic has to mix with the high speed traffic of the
highways. The entering vehicles have to cross vehicles wanting to exit and
that leads to problems. It would work fine if speed limits were drastically
reduced, as is done on circles.
If you haven't already done so, first download the
version of RFFlow. It will allow you to open any drawing and make
Once RFFlow is installed, you can open the above drawing in RFFlow by clicking
From there you can zoom in, change the text, change colors, print and fully
customize this sample drawing. It is often
easier to modify an existing drawing than to draw it from scratch.
To edit the text, you can either double-click or right-click and
choose Edit Text
from the menu that appears.
You can move a line by dragging it or change its length by single clicking on it and
dragging one of the handles. Green handles appear when you click on a shape,
line or curve. Drag these handles to size the object.
To change colors and other properties, right-click on the line or shape and
in the menu. To duplicate a line or shape,
right-click on it and choose Duplicate
. To delete a shape or line,
right-click on it and choose Delete
In general, you drag objects to move them, left-click to size them, and
right-click to change their text or properties.
To create this drawing without downloading it, run RFFlow and click the More
button. Open the
folder and click on the Roads
stencil. Then click the