
Grid plan
In urban planning, the grid plan, grid street plan, or gridiron plan is a type of city plan in which streets run at right angles to each other, forming a grid.[1]
Two inherent characteristics of the grid plan, frequent intersections and orthogonal geometry, facilitate movement. The geometry helps with orientation and wayfinding and its frequent intersections with the choice and directness of route to desired destinations.
In ancient Rome, the grid plan method of land measurement was called centuriation. The grid plan dates from antiquity and originated in multiple cultures; some of the earliest planned cities were built using grid plans in the Indian subcontinent.
a very large block measuring 113 by 113 m (371 by 371 ft), far larger than the old city blocks and larger than any Roman, Greek blocks and their mutations (see drawing below);
a 20 m (66 ft) road width (right of way) compared with mostly 3 m in the old city;
square blocks with truncated corners; and
major roads, perpendicular and diagonal, measuring 50 m (160 ft) in width.
Austin
Anniston, Alabama
Atlanta
Birmingham, Alabama
Bristol, Rhode Island
Cedar Falls, Iowa
Charlotte, North Carolina
Chicago
Cincinnati
Columbia, South Carolina
Columbus, Ohio
Dallas
Detroit
Fargo, North Dakota
Fresno, California
Holyoke
Houston
Indianapolis
Jacksonville
Las Vegas
Los Angeles
Lake Charles, Louisiana
Lubbock
Manchester
Miami
Milwaukee
Minneapolis
New Haven
Oklahoma City
Omaha, Nebraska
Orlando
Panorama City
Phoenix
Portland, Oregon
Providence, Rhode Island
Raleigh
Richmond
Sacramento
Salt Lake City
San Diego
San Francisco
San Jose, California
Sioux Falls, South Dakota
St. Louis
St. Petersburg, Florida
Tampa
Traverse City
Tucson
Tulsa, Oklahoma
Tyler
Wichita, Kansas
Wilmington, Delaware
Wilmington, North Carolina
Windermere
Winter Park, Florida
City block
(Manhattan street grid)
Commissioners' Plan of 1811
Comprehensive planning
Fused grid
(United States)