Final Reports

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Metropolitan Transportation Plan, 2007 Update

The Metropolitan Transportation Plan (MTP) for Clark County is the region's principal transportation planning document. It represents a regional transportation plan for the metropolitan area of Clark County, developed through a coordinated process between local jurisdictions in order to develop regional solutions to transportation needs.

The Final Report is 238 pages and the download is 2.74Mb. You may also download individual chapters from the MTP outline.

Congestion Monitoring Report, June 2007

The Congestion Management Monitoring project focuses on delivering improved transportation system performance information to decision-makers who must identify the most cost-effective strategies for addressing transportation congestion and improving mobility. This project consists of collecting additional transportation data, analyzing transportation system performance, and annual preparation of a System Performance Report. The performance measures considered for this project include a corridor congestion ratio, speed as percent of speed limit, auto vehicle occupancy, truck percentage, transit seat capacity used, and other transportation measures.

The Final Report (PDF, v5) is 67 pages and the download is 5.7 Mb.

Human Services Transportation Plan, January 2007

One of the new requirements of the current federal transportation act, SAFETEA-LU, is that a Coordinated Human Services Transportation Plan (HSTP) be developed. The HSTP addresses the transportation needs of the elderly, people with disabilities and low income populations. The Human Services Transportation Plan for Clark, Skamania and Klickitat Counties was adopted by the RTC Board of Directors on January 2, 2007.

The Final Report (PDF, v5) is 105 pages and the download is 3.6 Mb.

SR-35 Columbia River Crossing Feasibility Study Report, September 2004

This report is a summary of the SR-35 Columbia River Crossing Study, including the results of each of the three tiers of the study. During the SR-35 Study, several corridors and alternatives were considered and screened to a practical set of alternatives, which were studied during the Draft Environmental Impact Statement. Recommendations summarized in this report include the selection of a preliminary preferred long-term alternative and short-term improvement options.

The Final Report (PDF) is 74 pages and the download is 780Kb.

Skamania County Public Transit Feasibility Study, June 2003

A county-wide study was made to best understand the mobility needs of Skamania County.  The study, funded through a grant by the Rural Transit Assistance Program and administered by the Washington State Department of Transportation and the Southwest Washington Regional Transportation Council, was intended to result in a plan to address current and future Skamania public transportation needs. 

The Final Report (PDF) is 52 pages and the download is 608Kb.
The original webpages are also archived for browsing.

InterACT's Transportation Priorities Project, February 2003

InterACT, a subsidiary of Identity Clark County (a private, non-profit organization focused on community and economic development), recognized an impending implosion of voter financial support for Clark County’s transportation system and elected to take on a project that enabled its citizens to dream it, fund it, build it. Their findings detail how the project was conceived, designed and executed, and documents the results. The “Additional Information” provided as attachments to the report capture direct comments/concerns from the jurisdictions prior to launching the project, actual text of polling questions used, keypad technology polling results, a transportation briefing document (educational piece), direct citizen input comments, and jurisdiction reactions to the project.

The Final Report (PDF) is 44 pages and the download is 414Kb. 
Additional information
is also available for download.

I-205 Strategic Corridor Pre-Design Study / 
Access Point Decision Report, February 2002

The purpose of the study was to develop project recommendations along the corridor to improve safety, by reducing weaving, and increase or maintain the levels of service along the section of I-205 between SR 14 and NE 83rd Street. The recommendations include provisions for new access locations and the modification to existing access locations. The Access Point Decision Report was published and submitted to the Federal Highway Administration (FHWA) to gain federal approval for these project recommendations.

The Final Report (PDF) is 58 pages and the download is 3.8Mb. 
Additional information
is also available for download.

I-5 HOV Corridor Operational Study, April 2000

The I-5 HOV Corridor Operational Study investigated the feasibility and operations of a bi-state HOV facility in the I-5 corridor. The study was conducted in two phases. The first phase analyzed and identified a range of feasible HOV lane configurations for detailed operational analysis. While Phase I examined several configurations, the key to this portion of the study was an assessment on the feasibility of a reversible lane across the Interstate Bridge that will allow new HOV capacity without reducing general purpose capacity. The second phase of the study was the development of an HOV implementation plan. Phase II included a micro traffic operational analysis, the development and design of an HOV lane configuration in the I-5 corridor, an estimate of capital and operating costs, and a public information program, including a Clark County transportation survey.

The Final Report (PDF) is 100 pages and the download is 1.7Mb. The I-5 High-Occupancy Vehicle Operational Study Executive Summary with Technical Advisory Committee Findings (HTML) is also available online. The study concluded with a recommendation to implement a southbound high occupancy vehicle lane in the corridor during the morning commute period in conjunction with the I-5 widening construction project. The Vancouver HOV Lane Project is scheduled to open in Fall 2001.

Portland/Vancouver I-5 Trade Corridor Study,
Summary Report, December 1999

Nowhere in the region is the cost of delay more apparent than on Interstate 5 from Portland to Vancouver. Interstate 5 is critical to the regional, state, and national economy. It is the most significant freight freeway on the West Coast linking markets in Canada, the United States, and Mexico. It is also the busiest commuter roadway in the region, linking the region's two largest cities.

The region's transportation policy-makers appointed a 14-member Leadership Committee and asked them to examine the problems in the I-5 Trade Corridor and to address the following questions. What is the magnitude of the problem? What are the costs of inaction? What improvements are needed? How can they be funded? What are the next steps? This report is the Leadership Committee's response to the charge.

The Summary Report is 8 pages and the download is 243Kb.

Clark County High Occupancy Vehicle Study, June 1999

The purpose of the study was to develop a High Occupancy Vehicle region-wide system plan for Clark County that defines policies and objectives, identifies the need and benefits, and identifies the location of possible corridors and/or facilities. HOV lanes are travel lanes that are dedicated for use by carpools or buses; they are essentially for use by vehicles that carry more than one passenger. An HOV program can improve overall mobility in the most congested parts of our region by increasing the people-moving efficiency and capacity of freeway and arterials.

The study recommendations are made up of three elements: 1) goals and policies of a Clark County HOV System, 2) HOV System Plan, and 3) next steps, including a detailed examination for the implementation of an HOV facility in the I-5 corridor.

The Final Report is 79 pages and the download is 1.7Mb.

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This page was last updated January 16, 2008.