ORTHOGONAL PLAN GRID PLAN CHECKERBOARD This plan consists of straight , wide streets that cross at right angles .
An example of grid plan: Barcelona
RADIOCENTRIC PLAN This plan consists of central point from which streets radiate , like the spokes of a wheel , crossed by others that form concentric circles .
RADIOCENTRIC LAYOUT
IRREGULAR PLAN This plan does not have a defined geometric shape and is formed by short, narrow streets and alleys of irregular layout .