What is the main characteristic of a gridiron plan?

A gridiron plan is primarily characterized by rectilinear street patterns, which create a grid-like layout of streets that are typically parallel and intersect at right angles. This type of urban planning is often associated with efficient land use, ease of navigation, and organized zoning. The systematic layout facilitates the establishment of blocks and lots, making it straightforward for infrastructure development and urban organization.

The rectilinear arrangement allows for uniform building lots and can accommodate a variety of activities within a consistent framework, promoting accessibility and connectivity among different areas of a city. This clarity in design often contributes to the overall functionality and aesthetics of urban spaces, enhancing the livability of an environment.

In contrast to this, diagonal street patterns, irregular layouts, and circular street patterns do not fit the established principles of a gridiron plan. Diagonal arrangements might suggest more organic development or adaptation to terrain, while irregular layouts imply a lack of order and planning. Circular street patterns, on the other hand, may indicate radial designs that prioritize central points over systematic navigation, which is not characteristic of a gridiron plan.