MD Arterial Intersection
DesignApplied Technology and Traffic Analysis ProgramSPUI OverviewPronounced "Spooey", the Single-Point Urban Interchange
is a relatively new variant of the diamond. The SPUI's advantages (for
appropriate situations) include: compact layout; requires less right-of-way
acquisition; allows concurrent left turns for greater capacity.
SPUI
OverviewSPUI VideoInterchanges in heavily developed urban areas must move
an ever-increasing volume of traffic through limited amounts of space. One way
to maximize the flow of traffic in urban areas is through use of Single Point
Urban Interchanges. The Single Point, also known as an X-interchange or Urban
Diamond, is being used extensively in urban highway construction and
reconstruction across the country.
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