ITE Journal - August 2020 - 3

PTV Vistro enables you to build intricate alternative intersections with detailed ringbarrier sequences and allows signal controller sharing at multiple intersections.

DDI in Toledo, Ohio

CFI in Salt Lake City, Utah
Complex SPUI in Pueblo, Colorado

Alternative intersections and interchanges with PTV Vistro
Today's transportation challenges such as funding limitations and constricted rights-of-way push engineers to do more with less. Other
inﬂuences like aggressive scheduling, increases in congestion, and the need for improved safety, require innovative solutions. PTV Vistro
empowers transportation professionals to think outside-of-the-box, analyze, and document project decisions for innovative interchange and
alternative intersection designs.
Tested trafﬁc signal optimization workﬂows and ﬂexible geometry in PTV Vistro provide the necessary building blocks to cost-effectively
develop the right solutions. Vistro is versatile to analyze traditional trafﬁc signal operations, complete-streets, and access-management
projects. Also, Vistro quickly analyzes advanced alternative intersection designs like RCUTs, SPUIs, Green-Ts, CFIs, DDIs, MUTs, single-loops,
thru-turns, and split intersections.

Screening of alternative intersection designs using industry-standard methods
Robust industry-standard analysis methods including the Highway Capacity Manual 6th Edition, the Canadian Capacity Guide, ICU, and the
Kimber method are available in Vistro for diverse signalized, stop-controlled, and roundabout conﬁgurations. Measures of effectiveness are
reported, mapped, and colorfully displayed in the network editor. This makes PTV Vistro an important tool to screen existing conditions and
ﬁnd locations for improvements.

Scenario management and mitigations for an iterative experience
Innovative interchanges and alternative intersection designs are often not straight forward, requiring an iterative development process. PTV
Vistro provides you with the tools to explore and optimize your design, as well as identify red ﬂags early. The detailed geometry doubles as
a conceptual sketch tool while providing the analytical feedback to your design decisions. Vistro's Scenario and Mitigation managers
document all of your tests and tweaks in one ﬁle. And, if anything changes in the base model, PTV Vistro will smartly transfer changes to any
scenario, resulting in time-savings, a high-quality product, and consistency.

Adaptable network coding and trafﬁc signal controllers
PTV Vistro's user-interface is perfect to analyze alternative intersection designs. The network structure is intuitive to use and highly
customizable. Vistro displays the network map and workﬂow tables together, bringing vital user feedback. For complex intersections with
numerous movements, workﬂows can be sent to additional computer displays, providing multi-layout immersion with full-screen information.
Moreover, alternative intersection designs require ﬂexible signal controllers. PTV Vistro enables you to build intricate ring-barrier sequences.
Also, multiple intersections can share the same trafﬁc controller. And, to increase readability, PTV Vistro's resilient phase diagram clearly
illustrates which phases are in use at each connected intersection.

Do you want to learn more about studying alternative intersections in PTV Vistro?
Scan the QR code above to read our in-depth PTV Vistro Knowledge-Base article.

Learn more at ptvtrafﬁc.us/ITE

http://www.ptvtraffic.us/ITE

ITE Journal - August 2020

Table of Contents for the Digital Edition of ITE Journal - August 2020