Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Topic: Single-point urban interchange

    Note: these results are not from the primary (high quality) database.

Ads by Google

Related Topics

Diamond interchange

Freeway interchange

Parclo Interchange

Cloverleaf interchange

T junction

Roundabout intersection

Arterial road

Traffic light

Highway 407

Highway

Road transport

British Road Numbering Scheme

Dog

Train station

Easter Sunday

Single-point urban interchange - Wikipedia, the free encyclopedia A single point urban interchange (SPUI, pronounced spoo-ee, rhymes with phooey), also called a single point interchange (SPI) or single point diamond interchange (SPDI), is a type of highway interchange. It is similar in form to a diamond interchange but has the advantage of allowing opposing left turns to proceed simultaneously, by compressing the two intersections of a diamond into one single intersection over or under the free-flowing road. It was designed by Wallace Hawkes, Director of Transportation Engineering at Greiner, Inc., who has been called the "granddaddy of the urban interchange". en.wikipedia.org /wiki/SPUI   (466 words)

Interchanges: SPUI Pronounced "Spooey", the Single-point Urban Interchange is a relatively new variant of the diamond. Known as the "granddaddy of the urban interchange," Hawkes cites his design as more efficient and compact than a conventional interchange." "The unique feature is the inverted left turn lane," he explains in the Quarterly. The Stacked Diamond (shown) is a three-level variation of the four-level Stack interchange. www.kurumi.com /roads/interchanges/spui.html   (934 words)

Road junction A trumpet is an interchange traditionally used where one freeway terminates at another freeway; it involves at least one loop ramp (for traffic leaving the terminating freeway) whose overpass is shared by traffic connecting to the terminating freeway. A highway interchange is a road junction that utilizes grade separation, and one or more ramps, to permit traffic on at least one road to pass through the junction without crossing any other traffic stream. An alternative to the stack which requires fewer levels while retaining semi-directional ramps throughout is the whirlpool interchange, in which the left-turning ramps sweep around the center of the interchange in a spiral pattern. encycl.opentopia.com /term/Road_junction   (1254 words)

Proposed Indianapolis Interstate Interchange Improvement Projects This interchange was reconstructed as a single point urban interchange (SPUI) in 1999-2000. This interchange is interconnected with the Shadeland Ave. This interchange is basically being downgraded to a partial cloverleaf, with one dual-lane flyover ramp from I-465N to I-74W and a traffic signal on the west side of I-465. www.urbanophile.com /arenn/trans/ichange.html   (2983 words)

Superpave Comes of Age—A State's Perspective, November/December 2002 Public Roads In the weekday off-peak scenario, the capacity is approximately 4,300 vph for the double-roundabout interchange and 4,700 for the single-roundabout interchange. Similarly, the double-roundabout interchange and single-roundabout interchange off-ramps were flared to two lanes at the entry from 5 meters (16 feet) to 9 meters (30 feet) total width. A disadvantage of the single-roundabout interchange is the need to widen the bridges to meet intersection sight-distance requirements at the off-ramp terminals and the necessity to comply with stopping sight-distance requirements for circulating vehicles. www.tfhrc.gov /pubrds/02nov/10.htm   (3346 words)

Interchanges: Diamond Though these inner diamonds concentrate ramp traffic at a single point in the center, the Single-point Urban Interchange achieves that with right-hand exit ramps. Traffic signals can be installed at the two points where the ramps meet the surface street, but high enough traffic volumes can cause backups on the street and the ramps -- even resulting in stopped traffic on the freeway. The interchanges at left are called partial cloverleafs, or parclos, as they have loop ramps. www.kurumi.com /roads/interchanges/diamond.html   (458 words)

The New I-64 - Missouri Department of Transportation The Single Point, also known as an X-interchange or an Urban Diamond, is being used extensively in the reconstruction of existing freeways as well as the construction of new freeways. The Single Point Urban Interchange brings increased safety, capacity and efficiency to urban travel. The name "Single Point" refers to the fact that all thru-traffic on the arterial street -- and all traffic turning left onto or off of the interchange -- can be controlled from a single set of traffic signals. www.thenewi64.org /1c4_spui/1c4a_spui.jsp   (738 words)

American Society of Highway Engineers The regional importance of this interchange required that any impacts resulting from construction of a new facility be minimized. With the proposed widening of I-270, it was anticipated that problems associated with the interchange would increase significantly. The ADT on I-270 was projected to increase from 94,000 in 2000 to 122,000 in 2020 and on Sawmill Road from 41,000 to 63,000. www.highwayengineers.org /scanner72402e.html   (315 words)

Spui - Wikipedia, the free encyclopedia SPUI (Single Point Urban Interchange), a type of highway interchange If an internal link referred you to this page, you may wish to change the link to point directly to the intended article. This is a disambiguation page: a list of articles associated with the same title. en.wikipedia.org /wiki/Spui   (95 words)

Single-point urban interchanges (SPUI) interchanges The Single Point Urban Interchange (SPUI) is considered by most traffic engineers to be the pinnacle of modern highway design. Although this may sound like a the single-point directional interchange (SPDI), the SPUI deviates in the way that the intersection is intentionally skewed to allow for concurrent left turns, from the freeway to the road, and then from the road onto the freeway. Its main disadvantage is that the interchange is somewhat confusing to people that have never driven on it before. www.donovanmartin.com /roads/spui.html   (573 words)

Michael Baker Corporation The Mississippi Department of Transportation (MDOT) selected Baker to design a new Single Point Urban Interchange (SPUI) to replace an existing rural diamond interchange that was severely under capacity at SR 463 and Interstate 55, just north of the capital city of Jackson, Mississippi. Temporary interchange ramps were designed to handle traffic during the switching of traffic from the old roadways to the newly constructed ones An extensive traffic control plan allowing the south half of the new bridge to be constructed a mere 6 feet away from the existing bridge. www.mbakercorp.com /knowledge/view.cfm?DOC_ID=119   (212 words)

Interchanges: Oddities You've heard about how the diamond interchange design can be changed to a SPUI, (single point urban interchange) by locating the ramp termini to meet at one point, usually directly above or below the freeway. However, there would be two points (one for each road), not one, yielding a Dual-Point Urban Interchange. With appropriate channelization (shown), the only stopping points are at the loop terminus (left turn) and on the roadway entering the interchange area (straight). www.kurumi.com /roads/interchanges/oddities.html   (533 words)

161NExT - Project Overview A SPUI (Single Point Urban Interchange) will replace the old interchange at Sunbury Road and SR 161. Work on the Sunbury Road/S.R. SPUI (single point urban interchange) is progressing. The new interchanges at I-270 and SR 161 will eliminate weaving, merging and pinch points by replacing old "cloverleaf" ramps with new "fly-over" ramps. www.dot.state.oh.us /161next/overview.htm   (916 words)

Current 2004 and Future Major NDOT District 1 Projects Construct a single point urban interchange (SPUI) and structures. Upgrade to full single point urban interchange, Construction Start: March 2004 Widen the northbound roadway from 2 to 3 lanes, and widen the structures at the Jean Interchange and at the Sloan Interchange and concrete pavement repair. www.nevadadot.com /news/releases/release.asp?id=50&user=1&year=2004   (971 words)

Single Point Pronounced "Spooey", the Single-point Urban Interchange is a relatively new variant of... With a single point interchange, turning movements are arranged around a single point with fewer conflict... Map image of the single point interchange, a part of the US 53 Freeway project. www.acmecellphone.com /cellphone/singlepoint.html   (434 words)

KCCI.com - Automotive - New West Des Moines I-35 Interchange Opens The pattern is called a single point urban interchange. The interchange features a different traffic pattern than any other intersection in the state and will help move thousands of cars daily in and out of the new Jordan Creek Town Center mall. Officials said the difference lies in the single set of traffic lights right in the middle of the bridge. www.kcci.com /automotive/2255028/detail.html   (499 words)

Interchange of the Week-#58 This interchange, NY 104 at Phillips Road in Webster, primarily serves traffic between the Rochester area to the west, and a major plant of the Xerox Corporation on Phillips Road. The most basic interchange form is the diamond, a four-ramp configuration used where the freeway meets a relatively low-traffic surface road. At left is an example of a non-freeway diamond interchange in the Town of Henrietta. www.empirestateroads.com /week/week58.html   (564 words)

DesMoinesRegister.com The bow tie-shaped Single Point Urban Interchange is designed to move more cars faster and safer than traditional interchanges, while taking up less real estate. But unlike a figure-eight track, a single traffic signal in the middle of the bridge - hence the name "single point" - controls the intersection. Drivers approaching the interchange for the first time may feel like they've entered a figure-eight racetrack, where traffic from two directions meets at an "X" in the middle. desmoinesregister.com /apps/pbcs.dll/article?AID=/20050411/BUSINESS04/504110317/1029/archive   (840 words)

The Oakland Press: Local News: Realignment of 12 Mile begins Tuesday When construction is finished, a new single-point urban interchange will replace the current interchange that was built in the 1950s when this part of Oakland County was mostly farmland. Construction of this new interchange as well as future construction of a new interchange at I-96 and Wixom Road in Wixom are part of an overall strategy to reduce traffic congestion along I-96 from Novi to the Livingston County line. The advantages of this type of interchange is that it uses less space, which cuts land costs, and it can handle traffic as well as the cloverleaf or diamond interchanges that Michigan motorists are more familiar with. www.theoaklandpress.com /stories/052804/loc_20040528074.shtml   (640 words)

The New I-64 - Missouri Department of Transportation Why is it called a "Single Point?" Is the design safer than other interchange types? Single Points can move large amounts of traffic through a small amount of space. The design is a popular option in new freeway construction and urban freeway refits. www.thenewi64.org /1c4_spui.jsp   (100 words)

Associated Construction Publications - Single Point Interchange Under Construction The benefit of the Single Point Urban Interchange is made possible because of its design, which allows one set of traffic signals to control all of the traffic flow through the interchange. One of the first Single Point Urban Interchanges in Michigan is being constructed at Beck Road and Interstate 96 in Novi. What's different about the Single Point Urban Interchange is that the lanes on the bridge get used in multiple directions, depending on which traffic has the right-of-way," Mark Stuecher, resident engineer for the Michigan Department of Transportation (MDOT), said. www.acppubs.com /article/CA443044.html   (421 words)

Welcome to Improve I-70 A Single Point Urban Interchange (SPUI) is controlled by one set of traffic signals (highlighted) located at a single point at the center of the interchange. The signals direct thru-traffic, as well as all traffic that must turn left to enter or leave the freeway. www.improvei70.org /4a_popup1.htm   (45 words)

I-55 / Highway 463 Interchange The single-point urban interchange is designed with ramps that seemingly ‘float’ from a single point in the middle of the bridge (see map). The project provided for the reconstruction of the existing diamond interchange to a single-point urban interchange, the first in Mississippi, and one of only a few in the South. Work to reconstruct the Interstate Highway 55/Highway 463 interchange and to upgrade Highway 463 to Highway 51 in Madison County have long been objectives of the Mississippi Department of Transportation (MDOT). www.mdot.state.ms.us /news/projects/463interchange.htm   (519 words)

Olive/270 Construction The new single point urban interchange increases the number of lanes on Olive at the interchange and creates dual turning lanes on and off I-270. Moreover, the interchange has been heavily landscaped with large masses of both shade and ornamental trees interwoven with broad sweeping bands of ornamental grasses. The Missouri Department of Transportation (MoDOT) has completed reconstructing the Olive/I-270 Interchange improving vehicular movement and reducing congestion. www.creve-coeur.org /bridge/construction.htm   (351 words)

WSDOT - I-5 - Reconstruct Interchange at NE 134th - Project History A single point urban interchange, like those on I-5 at NE 78th Street and NE 99th Street in Vancouver, is a compact design controlled with one traffic signal. Through this process, a full interchange at NE 139th Street was identified for further study in the environmental assessment. The Salmon Creek Interchange Project is the long-term solution that will relieve traffic enough to eliminate the de-facto development moratorium that is in effect in the area. www.wsdot.wa.gov /Projects/I5/ne134thi205/history.htm   (326 words)

Section B03 Section B0 The $23 million Delmont Interchange was opened to traffic on September 15, 2000 completing a two-year widening of one mile of U.S. Route 22 and construction of a new Single Point Urban Interchange (SPUI) at Route 22 and State Route 66 in Salem Township. With the new interchange, traffic on Route 22 is now moving on a modern four-lane overpass. Constructed by Golden Triangle Construction, Inc., of Imperial, PA., the interchange was opened to traffic more than three months ahead of schedule. www.renew22.com /B03/b03.htm   (171 words)

www.87th-i35.org The cornerstone of the 87th St./I-35 project is a type of freeway interchange known as a Single Point Urban Interchange, or SPUI (pronounced "spoo-ee.") Many new interchanges around the country are operating successfully as Single Point Urban Interchanges (SPUIs), which can move vehicles more efficiently. A SPUI permits simultaneous movements and reduces multiple stops for turning traffic- because the intersection is controlled by a single traffic signal, there are fewer delays, increased capacity and safer operations. www.ci.lenexa.ks.us /87thSt/NewInterchangedesign.html   (199 words)

Research Brief - Comparison of the Single Point Urban and Diamond Interchanges The SPUI is a safe, efficient urban interchange design that can decrease delay and congestion and, generally, uses less land area than other interchange types. When the interchange is to be constructed at locations with continuous frontage, use a DI because the SPUI’s through movement requires an additional fourth phase that significantly increases overall interchange delay. Ten volume scenarios were then developed and simulated for both interchanges at low- and high-volume conditions to analyze the effect of obvious traffic patterns on the relative operational performance of each interchange type. www.virginiadot.org /vtrc/briefs/97-r6rb/diam.htm   (732 words)

WixomFreewayExits All four turning moves, at this central confluence of cars, are controlled by a single grouping of traffic signals and opposing double left turns operate to the left of each other. They also provide greater capacity than conventional tight diamond interchanges, which will be a benefit to the growing number of commercial and residential community members in our area. s are primarily suited for urban areas where right-of-way is restricted, and adequate land for sweeping exit/entrance ramps is limited or unavailable. www.geocities.com /jackfarquhar/WixomFreewayExits   (319 words)

Maude Avenue Interchange Some quick shots of the CA 237/Maude Avenue interchange in Sunnyvale, a SPUI (Single-Point Urban Interchange). Note the neat crosswalks on the right side (they do the same thing on the other side of 237, so you have a bit of a winding walk to get across.) The overhead traffic lights (mounted on the overpass) are diagonal left arrows pointing in the direction of the eastbound ramp. These are somewhat unusual and/or confusing if you haven't seen them before. outdoor.epicentre.net /spui.html   (134 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.