969 resultados para transportation geotechnics


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This paper exploits an unusual transportation setting to estimate the value of a statistical life(VSL). We estimate the trade-offs individuals are willing to make between mortality risk andcost as they travel to and from the international airport in Sierra Leone (which is separated fromthe capital Freetown by a body of water). Travelers choose from among multiple transportoptions ? namely, ferry, helicopter, hovercraft, and water taxi. The setting and original datasetallow us to address some typical omitted variable concerns in order to generate some of the firstrevealed preference VSL estimates from Africa. The data also allows us to compare VSLestimates for travelers from 56 countries, including 20 African and 36 non-African countries, allfacing the same choice situation. The average VSL estimate for African travelers in the sample isUS$577,000 compared to US$924,000 for non-Africans. Individual characteristics, particularlyjob earnings, can largely account for the difference between Africans and non-Africans; Africansin the sample typically earn somewhat less. There is little evidence that individual VSL estimatesare driven by a lack of information, predicted life expectancy, or cultural norms around risktakingor fatalism. The data implies an income elasticity of the VSL of 1.77. These revealedpreference VSL estimates from a developing country fill an important gap in the existingliterature, and can be used for a variety of public policy purposes, including in current debateswithin Sierra Leone regarding the desirability of constructing new transportation infrastructure.

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These Facts sheets have been developed to provide a multitude of information about executive branch agencies/departments on a single sheet of paper. The Facts provides general information, contact information, workforce data, leave & benefits information, and affirmative action data. This is the most recent update of information for the fiscal year 2007.

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These Facts sheets have been developed to provide a multitude of information about executive branch agencies/departments on a single sheet of paper. The Facts provides general information, contact information, workforce data, leave & benefits information, and affirmative action data. This is the most recent update of information for the fiscal year 2007.

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Iowa’s Statewide Transportation Improvement Program (STIP) has been developed in conformance with the guidelines prescribed by 23 USC. The STIP is generated to provide the Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) a listing of all projects that are candidates for federal aid from the FHWA and FTA for four federal fiscal years (FFY). Preceding the listings of federal-aid candidates are general comments concerning Iowa’s public participation process for selection of federal-aid projects and the basis for funding the proposed projects. Documents evidencing the Iowa Department of Transportation’s (Iowa DOT) authority to act concerning matters related to transportation, federal-aid expenditures and approvals of Metropolitan Planning Organizations’ (MPOs) Transportation Improvements Programs (TIPs) have been provided in past STIP’s and can be provided again upon request. The projects identified within the 2010-2013 STIP are divided into two groups. Projects proposed for funding from FHWA programs are shown first. FTA programs follow. Maps are included that identify locations of Iowa DOT District Planners, Metropolitan Planning Organizations (MPOs), Regional Planning affiliations (RPAs), and transit systems.

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Report on the driver’s license issuance program administered by the Department of Transportation and County Treasurers’ offices for the year ended June 30, 2009

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Twelve regularly scheduled lettings and nine emergency/special lettings were held by the Iowa Department of Transportation for construction and maintenance work during the period covered by this report. At these lettings, projects totaling $1,030,584,566 were approved.

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To provide safe and modern transportation systems and services to individuals who travel in Iowa, the Iowa Department of Transportation has identified three broad-based and far-reaching strategic goals: accessibility, responsiveness and accountability. These goals are outlined in this plan, which is aligned with the Accountable Government Act. In addition, the plan specifically addresses strategic needs to serve our customers, and to respond to trends of a growing population and the ever changing need to enhance and expand Iowa's transportation systems. This plan is a living document, and therefore, will be updated periodically.

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Report on a review of the Transportation Enhancement Program of the Iowa Department of Transportation for projects closed out during the period July 1, 2007 through June 30, 2009

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The DOT monitors performance of five core functions, under which are eight services, products and activities (SPAs). In all, 56 measures are used to monitor the core functions and SPAs in the DOT’s performance plan. (See Iowa DOT Performance Report – FY2009, pages 1A-9A.) Overall, DOT’s performance was good in fiscal year 2009. Of the 56 measures in the DOT’s performance plan, 43 measures (77%) met or exceeded their targets. Of the 13 measures falling short, ten were within four percent of their target. This means 95 percent of DOT measures met or exceeded 96 percent of their preset target. Performance measures monitoring the core functions of Physical Asset Management and Resource Management showed the DOT did a good job managing resources. A total of 11 of the 14 (79%) core function and SPA measures met or exceeded their predetermined targets. Two of the three measures falling short were within four percent of its target. Core function and SPA measures within the Transportation Systems core function indicated good performance. A total of 22 of the 30 (73%) core function and SPA measures met or exceeded their predetermined targets. Overall, six of the eight measures falling short were within four percent of their target. Performance measures monitoring the core functions of Enforcement and Investigation and Regulation and Compliance showed the DOT performed well. A total of 10 of the 12 (83%) core function and SPA measures met or exceeded their predetermined targets. Both of the measures falling short were within four percent of their target.

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FUNDING STUDY SUMMARY The 2008 legislature directed the Iowa Department of Transportation, in cooperation with, the Iowa Office of Energy Independence and the Iowa Department of Natural Resources to conduct a study to: 1. Quantify current revenue available to support public transit. 2. Determine whether current revenue is sufficient to meet future needs. 3. Assess how well the state’s public transit network supports the current and expanding mobility needs of the state’s senior population. 4. Document the transit improvements needed to meet the state’s energy independence goals.

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The Iowa Transportation Improvement Program (Program) is published to inform Iowans of planned investments in our state’s transportation system. The Iowa Transportation Commission (Commission) and Iowa Department of Transportation (Iowa DOT) are committed to programming those investments in a fiscally responsible manner. This document serves as the Iowa DOT's annual report as required by Iowa Code section 7A.9. This document reflects Iowa’s multimodal transportation system by the inclusion of investments in aviation, transit, railroads, trails, and highways. A major component of this program is the highway section that documents programmed investments on the primary highway system for the next five years. A large part of funding available for highway programming comes from the federal government. Accurately estimating future funding levels of this federal funding is dependent on having a current enacted multi-year federal transportation authorization. The most recent authorization, Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), expired September 30, 2009, and to date it has been extended five times because a new authorization has not yet been enacted. The current extension expires December 31, 2010. While Iowa law does not require the adoption of a Program when federal transportation funding is being reauthorized, the Commission believes it is important to adopt a Program in order to continue on-going planning and project development efforts and to be well positioned when a new authorization is adopted. However, it is important to recognize that, absent a federal authorization bill, there is significant uncertainty in the forecast of federal revenues. The Commission and the Iowa DOT will continue to monitor federal revenues and will adjust future investments as needed to maintain a fiscally responsible Program. In developing the highway section of the program, the Commission’s primary investment objective remains stewardship (i.e. safety, maintenance and preservation) of Iowa’s existing highway system. In fact, over $1.2 billion is programmed in FY2011 through FY2015 for preservation of Iowa’s existing highway system and for enhanced highway safety features. The highway section also includes significant investments for interstate modernization on I-29 inSioux City, on I-29/80/480 in Council Bluffs, and on I-74 in Bettendorf/ Davenport. Another highway programming objective reflected in this Program is maintaining the scheduled completion of capacity and economic development projects that were identified in the previous Program. Finally, with the limited remaining funds the Commission has furthered the investment in capacity and economic development by adding a few projects to the Program. The Iowa DOT and Commission appreciate the public’s involvement in the state’s transportation planning process. Comments received personally, by letter or through participation in the Commission’s regular meetings or public input meetings held around the state each year, are invaluable in providing guidance for the future of Iowa’s transportation system.

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Report on the Iowa Department of Transportation for the year ended June 30, 2009

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The Rebuild Iowa Infrastructure and Transportation Task Force is acutely aware of the critical role infrastructure plays in Iowa’s communities, the lives of the residents, and the economic well-being of the state. With encouragement to the Rebuild Iowa Advisory Commission (RIAC) for its consideration of great need for infrastructure and transportation repairs, the Task Force provides its assessment and recommendations. As the RIAC fulfills its obligations to guide the recovery and reconstruction in Iowa, infrastructure and transportation must be recognized for its impact on all Iowans. The tornadoes, storms, and floods were devastating to infrastructure and transportation systems across the state. The damage did not distinguish between privately-owned and public assets. The significance of the damage emerges further with the magnitude of the damage estimates. Infrastructure includes components that some might initially overlook, such as communication systems, landfills, and water treatment. The miles of damaged roads and bridges are more evident to many Iowans. Given the reliance on infrastructure systems, many repairs are already underway, though gaps have emerged in the funding for repairs to certain infrastructure systems. Supplement Information to the August 2008

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Twelve regularly scheduled lettings and two emergency/special lettings were held by the Iowa Department of Transportation for construction and maintenance work during the period covered by this report. At these lettings, projects totaling $625,486,614 were approved.