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The Transportation Expansion (T-REX) Project was a $1.67 billion project with the goal of transforming the way people in the Denver metro area commute within the areas of Interstate 25 and 225, the country's 14th busiest intersection at the time. The T-REX effort widened major interstates to as much as 7 lanes wide in each direction and added of double-track light rail throughout the metropolitan area ( total). Some consider it to be one of the most successful transportation upgrade projects in the United States. It also received a National Design-Build Award from the Design-Build Institute of America. The T-REX project finished 3.2% under its $1.67 billion budget and 22 months ahead of schedule in 2006 and is considered to be an example of inter-governmental agency cooperation for transportation projects for North America and Worldwide and national and international stakeholders have been recognized nationally for its success, including quality management. Success in T-REX led to public support of
FasTracks FasTracks is a multibillion-dollar public transportation expansion plan under construction in metropolitan Denver, Colorado, United States. Developed by the Regional Transportation District (RTD), the plan consists of new commuter rail, light ...
during the 2004 election. The T-REX corridor carries more than 280,000 vehicles per day and connects the two largest employment centers in the region: Downtown Denver and the Denver Tech Center.


Funding

T-REX was funded using no new state, county, city, or gas taxes. This was partially due to the
TABOR Tabor may refer to: Places Czech Republic * Tábor, a town in the South Bohemian Region ** Tábor District, the surrounding district * Tábor, a village and part of Velké Heraltice in the Moravian-Silesian Region Israel * Mount Tabor, Galilee ...
laws enacted in 1992, and the State Leadership's stance against levying additional taxes on its constituents. Instead, metropolitan areas that would benefit from the expansion voted to approve an increase of property taxes required for the build out. In November 1999, voters in affected municipalities approved two property-tax increases which partially funded the transit portion of the project. Among those: * Design-build contract with Southeast Corridor Constructors worth $1.18 billion. * Light rail costs: $879 million, with $437 million coming from RTD and local matching funds; $525 million from an FTA full-funding grant agreement. *
Highway A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access ...
costs: $795 million, from highway users taxes and matching federal revenue. * 34 new light-rail vehicles: $91.8 million. * Elati Street Light Rail Maintenance Facility: $39.5 million.


History

T-REX's initial footsteps can be traced back to a 1992
traffic congestion Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s. When traffic de ...
study commissioned by the
Denver Regional Council of Governments 240px, A map showing counties included in the Denver Regional Council of Governments The Denver Regional Council of Governments (DRCOG, ) is a nonprofit, membership organization of local governments in the Denver region of the state of Colorado. ...
( DRCOG). The study found that traffic volume along the corridor had exceeded its maximum capacity of 180,000 vehicles per day and, within a few years, the freeway would be near gridlock most of the day. Adding to the gloomy forecast of gridlock, planners projected that 150,000 new jobs would be added in the downtown area and at the huge Denver Tech Center, which is 15 miles (24 kilometers) to the south, over the next 20 years. The study not only recommended widening the freeway by several lanes, but it also suggested incorporating some type of
mass transit Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typical ...
into any future improvements. In April 1995, The Colorado Department of Transportation and RTD took the first step toward developing the partnership that ultimately became T-REX. The two agencies and DRCOG commissioned the Southeast Corridor
Major Investment Study Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
(MIS), which sought the best solutions to the I-25/I-225 congestion problem. Arapahoe and Douglas counties along with the cities of Denver, Aurora, and Greenwood Village participated in the initial
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
. Two other Denver-area corridor studies were also undertaken. The initial
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
was primarily transit-oriented in scope. The recommendations included light rail, highway improvements, pedestrian/bicycle facility improvements, enhanced Transportation Demand Management (TDM), Intelligent transportation system (ITS) measures. It also recommended safety improvements such as acceleration and deceleration lanes, wider shoulders. The initial MIS did not call for additional highway lanes. The
Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program ...
and CDOT were troubled by this omission, and leaders of all four agencies agreed that the
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
placed too much emphasis on transit. "We weren't going to spend over a billion dollars on this project without involving more highway capacity. It couldn't be a predominantly transit project," Said Bill Jones, the
Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program ...
's Colorado Division administrator. "This was the turning point when we realized together that the transit part of the project couldn't be built without the highway part." "We looked at ways to break down the highway vs. transit rivalry and started looking at mobility," RTD Director, Cal Marsella said. "Let's look at highway and transit as coordinated pieces of a comprehensive strategy to maximize mobility in a project with limited available right of way. We set our sights on a project that was a win-win (proposition) for both transit and highway. What emerged was the T-REX project."
US Department of Transportation The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the President of the United States a ...
, Environmental Review Toolkit, 'Transportation Expansion (T-REX) Multi-Modal Transportation Project' http://www.environment.fhwa.dot.gov/strmlng/casestudies/co.asp
A second, more comprehensive
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
was completed two years later. Unlike the initial study, the scope included Core Infrastructure (Highway) improvements as well as Transit solutions. It recommended expanding highway lanes up to 7 wide in each direction as well as added light rail support throughout the corridor. Additionally, the cities of Lone Tree, Parker and
Centennial {{other uses, Centennial (disambiguation), Centenary (disambiguation) A centennial, or centenary in British English, is a 100th anniversary or otherwise relates to a century, a period of 100 years. Notable events Notable centennial events at a ...
were also included for input and feedback. DRCOG adopted the recommendations of the 1997 Study which included the of double-track light rail and 13 stations with the track running next to or in the median of I-25 and I-225. In November 1998, DRCOG adopted a 20-year regional transportation plan calle
Metro Vision 2020
T-REX was a top priority in the plan. Planning for the project began in June 1999, with the passage of a law allowing the state Department of Transportation (CDOT) to use Transportation Revenue Anticipation Notes to borrow money based on federal funds the state had not yet approved. Shortly thereafter, The Colorado Department of Transportation (CDOT),
Regional Transportation District The Regional Transportation District, more commonly referred to as RTD, is the regional agency operating public transit services in eight out of the twelve counties in the Denver-Aurora-Boulder Combined Statistical Area in the U.S. state of Col ...
(RTD),
Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program ...
and
Federal Transit Administration The Federal Transit Administration (FTA) is an agency within the United States Department of Transportation (DOT) that provides financial and technical assistance to local public transportation systems. The FTA is one of ten modal administratio ...
signed a "Partnering Agreement" to work on the project, and voters approved the plan to run light rail through the corridor. Southeast Corridor Constructors, a joint venture between Omaha,
Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...
-base
Kiewit Construction
and Pasadena, CA-base
Parsons Transportation Group
won the design-build contract in May 2001. Construction began only a few months later- in June 2001. The "Partnering Agreement" was a key to the success of the project. Signed by all stakeholders, and it established four primary goals: * Minimize inconvenience to the community, motorists, and public. * Meet or beat the total program budget of $1.67 billion. * Provide a quality project. * Meet or beat the project's operational deadline of June 30, 2008. Another vitally important element of the
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
process and success to the project was the early formation of two committees—A Policy Committee provided input on policy-related issues and monitored project progress relative to the overall public agency decision-making process, and a Technical Committee focused on all planning, engineering and environmental issues and assisted in the development and refinement of alternatives. Members of this committee were individuals from the various cities and jurisdictions within the study area who had a technical background. These two committees, (Policy Committee and Technical Committee) used goals from the "Partnering Agreement" to refine and evaluate each alternative. Public meetings and numerous workshops were held during NEPA (National Environmental Policy Act) scoping and at key milestones during the study to present the definition of alternatives and to guide the Colorado Department of Transportation and RTD in the development and evaluation of any Preferred Alternatives. Committee members primarily consisted of elected and/or appointed policy/decision-making officials from the affected areas. After the adoption of the
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
, all four agencies in June 1998 signed a "partnering charter" that created a leadership team to identify and pursue the best multi modal solutions. CDOT and RTD next assembled the teams into one location. Top management from all four agencies began meeting every two weeks. The purpose of the senior-level meetings was "not just to get briefings," said Chick Dolby, Federal Transit Administration deputy regional administrator, "but to do the planning and make decisions." A project newsletter was published at key project milestones to keep the public informed. The committees remained intact during the NEPA and preliminary engineering process, and monthly meetings were held to keep them involved. This also helped with maintaining a constant public process and ongoing relations with the public through the release of project newsletters, which discussed the project, listed milestone dates and invited the public to attend open houses and provide comments. Press releases and a media tour were utilized to keep the project in the media, and project displays were placed in public buildings to keep the public informed. A project
website A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Examples of notable websites are Google, Facebook, Amazon, and W ...
was continuously updated with the latest documents and information. Project team members met over 215 times with community groups. By the end of 2002, working with a $100 million budget, the T-REX Project acquired six single-family homes, two duplexes and two apartment buildings. It negotiated 30 total acquisitions and 172 partial acquisitions. Businesses were also eligible for replacement property costs and moving costs. As with residential properties, the T-REX Project purchased business properties, and relocation experts helped businesses move. No one had to move until they found comparable replacement housing.T-REX Factbook page 19 - Right of Way Issues, http://www.metrodenver.org/documents/T-REX%20Factbook.pdf T-REX's five-year design-build project added of light rail and improved of highway through southeast
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...
,
Aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...
,
Greenwood Village The City of Greenwood Village is a home rule municipality located in Arapahoe County, Colorado, United States. The city population was 15,691 at the 2020 United States Census. Greenwood Village is a part of the Denver–Aurora–Lakewood, CO Met ...
,
Centennial {{other uses, Centennial (disambiguation), Centenary (disambiguation) A centennial, or centenary in British English, is a 100th anniversary or otherwise relates to a century, a period of 100 years. Notable events Notable centennial events at a ...
and Lone Tree. The unprecedented project is the result of a unique collaboration between the Colorado Department of Transportation, the Regional Transportation District, which is responsible for transit service in the metro Denver area, the Federal Highway Administration and the Federal Transit Administration. Construction began in Fall 2001 and construction ended in December 2006, 22 months ahead of the original schedule. Additionally, light rail service along the Southeast Corridor began in late 2006.


Timeline

* April 1995 — Southeast Corridor Major Investment Study (
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
) begins. Recommends 19-mile (31-kilometer), 13-station light-rail extension and major safety improvements (but no additional lanes) to I-25/I-225. * October 1997— Denver Regional Council of Governments adopts
MIS MIS or mis may refer to: Science and technology * Management information system * Marine isotope stage, stages of the Earth's climate * Maximal independent set, in graph theory * Metal-insulator-semiconductor, e.g., in MIS capacitor * Minimally i ...
. * March 1998 — Public meetings begin for project's environmental impact statement (EIS). * November 1999 — Voters approve two bond measures that pave the way for project financing. * December 1999 — Final EIS signed. * March 2000 — Record of decision issued. * July 2000 —T-REX begins qualifying contractors for bidding. * November 2000 —FTA awards $525 million full-funding agreement. Request for proposal released to qualified bidders. * May 2001 — Southeast Corridor Project renamed Transportation Expansion Project (T-REX). Southeast Corridor Constructors, a Kiewit-Parsons team, selected to build the project. * June 2001 — Contract awarded; notice to proceed issued. * September 24, 2001 — Groundbreaking. * October 2001 — Construction begins. * March 27, 2004 — Bridges at I-225 and I-25 imploded. * April 2006 — RTD Began advertising the T-Rex project on its website which announced the opening day. * July 2006 — Station signs added. * October 2006 — RTD offered discounted fairs during the first week of the opening day. ''Need more details... Please add'' * Completed and opened on November 17, 2006


Novel Approach in "Design Build" Methodology

T-REX is one of the first transportation projects in the US to use a design-build contract in which the same contractor is responsible for the project's engineering and construction. Under this type of contract, the contracting agency provides a general concept of the plan, and the contractor is responsible for most of the details, many of which are worked out as the project proceeds. "This project represents the first time, in any state, that a state transportation department and a transit agency have come together to build one project under a single financial plan, to provide travelers with integrated transportation system options." said Randy Pierce, who served as consultant principal-in-charge/project manager of T-REX. "We think, based on our research, that it's the largest transportation design-build project in the country," says Richard Clarke, T-REX project director. "We were able to get it done a lot faster because we finished a lot of the construction before the design was completely done." Because the T-REX is unique by combining light rail,
highway A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access ...
,
bike A bicycle, also called a pedal cycle, bike or cycle, is a human-powered or motor-powered assisted, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist. Bic ...
,
pedestrian A pedestrian is a person traveling on foot, whether walking or running. In modern times, the term usually refers to someone walking on a road or pavement, but this was not the case historically. The meaning of pedestrian is displayed with ...
and other transit options, the project used a multi-modal approach to address some of the traffic problems.


Success Metrics

Design-build allowed for flexibility and creativity in support of the project goals, which were in line with the original "Partnering Agreement": * Minimize inconvenience to the public (meant working during off hours of between 9pm and 5am) * Stay within the project's $1.67 billion budget * Design and construct a quality project * Complete the project on or before June 2008* (actual end date was Dec 2006, 22 months early) The public was generally in favor of the project. There was, however, some opposition from property owners who opposed the outright taking of, or encroachment onto their property, but relocation experts helped residents and businesses move. No one had to move until they found comparable replacement housing. Public input did result in minor changes to the project, including light rail alignment and station locations. Political support may also have been a factor in the expediting of the project. Colorado Governor Roy Romer supported the project from the outset, and there was local political support for light rail. However, some local politicians and special interest groups were against the highway.


Financial Benefits

Denver residents are now saving about of motor fuel and related air pollution that is worth about $4 million per year.


Quality of Life Benefits

* I-25 links Denver's two major employment centers downtown and the Denver Tech Center where more than 200,000 people work. * Regional growth will add another 150,000 jobs in DTC and downtown over the next 20 years, says the
Denver Regional Council of Governments 240px, A map showing counties included in the Denver Regional Council of Governments The Denver Regional Council of Governments (DRCOG, ) is a nonprofit, membership organization of local governments in the Denver region of the state of Colorado. ...
, a multi-county oversight group. * Denver Mayor
John Hickenlooper John Wright Hickenlooper Jr. (; born February 7, 1952) is an American politician serving as the junior United States senator from Colorado since 2021. A member of the Democratic Party, he served as the 42nd governor of Colorado from 2011 to 20 ...
, and former Gov. Bill Owens understand that the new infrastructure, and decreased commute times throughout the metro area are a plus and increase quality of life. They have actively pursued A "Mission of Economic Development", talking to companies who might be looking to relocate.


Infrastructure Benefits

* One additional lane in each direction on most sections; two additional lanes in most congested areas. * Reconstructed eight interchanges, most notably the I-25/I-225 interchange, which was ranked the 14th most congested interchange in the nation. * Complete reconstruction of "Narrows" (Broadway to Steele streets). * Replacement or rehabilitation of 18 bridges. * Acceleration and deceleration lanes throughout. * Shoulders widened where feasible. * Implementation of Transportation Demand Management (TDM) solutions which assist on-ramp timing * Intelligent Transportation Systems (ITS) which allowed ExpressToll, a form of electronic toll collection, to collect toll for single-person capacity usage while in the HOV lanes, a need identified by some HOV offenders * Major drainage upgrades. * Added of double-track light rail connecting to the existing system at Broadway in Denver and extending along the west side of I-25 to Lincoln Avenue in Douglas County and in the median of I-225 from I-25 to Parker Road in Aurora * 13 stations with Bus Transit available at 12 of the stations * 34 additional light rail vehicles were added to RTD's fleet * Construction of a new light rail maintenance facility in Englewood On
Interstate 25 Interstate 25 (I-25) is a major Interstate Highway in the western United States. It is primarily a north–south highway, serving as the main route through New Mexico, Colorado, and Wyoming. I-25 stretches from I-10 at Las Cruces, New Mexi ...
Additional benefits to roadways were: * Add one through lane in each direction from Logan Street to I-225 (for a total of four lanes each way) * Add two through lanes in each direction from I-225 to the C470/E470 interchange (for a total of five lanes each way) On Interstate 225 T-REX's Benefits were: * Addition of one through lane in each direction from Parker Road in Aurora to I-25 (for a total of three lanes each way) * Reconstructed and widened numerous bridges * Improved drainage * Enhanced safety * Add and improve shoulders * Improve ramps and acceleration/deceleration lanes


Model for other cities

* Utah was the first state to employ design-build on a very large transportation project. It served as a model for T-REX. UDOT and the Utah Transit Authority worked to reconstruct a major Salt Lake City arterial, Interstate 15, and construction had to be finished for the 2002 Winter Olympics. This project required collaboration between UDOT and the Utah Transit Authority (UTA) because it combined a light-rail project with the roadwork, said Doug Dansie, principal planner for the Salt Lake City Planning Department. "The rail lines were built because just expanding the freeway wasn't enough to handle the commuter capacity," Dansie says. Utah's rail line solution, unlike T-REX, were not in the interstates right-of-way. Dansie believes projects like T-REX that combine traffic and highway expansion are probably the best approach to relieving congestion, though there is currently a bias toward
road expansion Road expansion refers to the increasing rate at which roads are being constructed globally. Increases in population size and GDP, particularly in developing nations, are the primary drivers of road expansion but transportation planning deci ...
. "It really does need to be a balance," Doug Dansie, principal planner for the Salt Lake City Planning Department said. * Representatives from the
Arizona Department of Transportation The Arizona Department of Transportation (ADOT, pronounced "A-Dot") is an Arizona state government agency charged with facilitating mobility within the state. In addition to managing the state's highway system, the agency is also involved with p ...
, the Maricopa Association of Governments and the
Valley Metro Rail Valley Metro Rail (styled as METRO) is a light rail line serving the cities of Phoenix, Tempe, and Mesa in Arizona, USA. The network, which is part of the Valley Metro public transit system, began operations on December 27, 2008. In , the sy ...
system in Phoenix observed T-REX. Phoenix is in the early stages of a similar project on its
Interstate 10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally p ...
corridor, one that also involves expanding the highway and building more rail lines, says Wulf Grote, director of project development for Valley Metro Rail. "We hoped the trip to Denver would spark some discussion on working together," Grote says. While Phoenix's light-rail project will not be complete until around 2019, the highway improvements are supposed to be finished in the next five years. Like T-Rex,
Valley Metro The Valley Metro Regional Public Transportation Authority, more popularly known as Valley Metro, is the unified public brand of the regional transit system for the Phoenix metropolitan area. Within the system, it is divided between Valley Metro ...
wants to run its rail lines in the highway's right-of-way. * Wisconsin Department of Transportation has considered implementing design-build strategies into future projects.


Argument for Light rail instead of HOV lanes

Light rail transit was endorsed because of the following reasons noted in the T-REX factbook: * Light rail has significantly less impact to existing residences and businesses in the corridor and to natural resources, such as wetlands, parks, and historic properties. * Light rail has the greatest potential carrying capacity * Light rail has the best travel time * Light rail requires the lowest investment per user * Light rail had stronger potential for joint development * Light rail is the most reliable and safe option * Light rail had stronger community support Additionally,
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...
Mayor
John Hickenlooper John Wright Hickenlooper Jr. (; born February 7, 1952) is an American politician serving as the junior United States senator from Colorado since 2021. A member of the Democratic Party, he served as the 42nd governor of Colorado from 2011 to 20 ...
said, " Light rail offers a good solution to congestion, because even if you add more highway lanes, they quickly are filled with more cars." "You can add more and more traffic to the rail line, and not only does it not slow down, it takes more people," Mayor Hickenlooper continued, "Combining rail lines with highway expansion has a lot of appeal to voters, but the ability to do so depends on the amount of space available for the project."Hickenlooper, Owens plan California eco-devo trip, http://www.bizjournals.com/denver/stories/2003/06/23/daily38.html


See also

*
Colorado Department of Transportation The Colorado Department of Transportation (CDOT, pronounced See Dot) is the principal department of the Colorado state government that administers state government transportation responsibilities in the state of Colorado. CDOT is responsible f ...
*
Denver Regional Council of Governments 240px, A map showing counties included in the Denver Regional Council of Governments The Denver Regional Council of Governments (DRCOG, ) is a nonprofit, membership organization of local governments in the Denver region of the state of Colorado. ...
* light rail *
mass transit Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typical ...
*
state highways in Colorado The state highways of Colorado are a system of public paved roads funded and maintained by the Colorado Department of Transportation (CDOT) in the U.S. state of Colorado. These are state highways, which are typically abbreviated SH. The numbered ...
*
State of Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the ...


References


External links

*http://www.irfnews.org/trex_press_release.htm *http://www.orcharddevelopmentgroup.com/news_denverpost_101706.htm *http://www.environment.fhwa.dot.gov/strmlng/casestudies/co.asp *http://ops.fhwa.dot.gov/congestion_report_04/chapter4.htm *http://www.tfhrc.gov/pubrds/septoct01/trex.htm *http://www.lsgallegos.com/featured_project_trans_support.htm *http://www.constructor.construction.com/coverStories/default.asp *http://www.transportation1.org/tif1report/expansion.html *http://www.lightrailnow.org/news/n_lrt_2007-03a.htm *http://americancityandcounty.com/features/government_parallel_tracks/ *https://web.archive.org/web/20040806063348/http://www.trexproject.com/trex_channels/about/factbook.asp *https://web.archive.org/web/20040806064107/http://www.trexproject.com/trex_channels/about/introduction.asp *http://www.denvergov.org/CouncilDistrict7/tabid/425111/Default.aspx *https://web.archive.org/web/20040806063348/http://www.trexproject.com/trex_content/about/trex_2003_factbook.pdf {{DEFAULTSORT:Colorado T-Rex Project (Transportation Expansion) Regional Transportation District T_REX Project Urban planning in the United States Road transportation in the United States Transport economics Transportation planning