The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
One of the most environmentally friendly methods to recycle scrap tires is by shredding them into tire derived aggregate (TDA). TDA possesses desirable properties for various civil engineering applications and has been successfully used as fill material in numerous projects. To address the limitations of previous studies, 27 direct shear tests were
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Elashram, M., Gheni, A., & ElGawady, M. (2024). The Effect of Rubber Fills on the Performance of Infrastructure (Report No. cmr 24-018). Missouri. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/78706
Elashram, Mohamed, Ahmed Gheni, and Mohamed ElGawady. The Effect of Rubber Fills on the Performance of Infrastructure. Report no. cmr 24-018. Missouri. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/78706.
Elashram, Mohamed, et al. The Effect of Rubber Fills on the Performance of Infrastructure. Missouri. Department of Transportation, 2024, Report no. cmr 24-018, ROSA P. https://rosap.ntl.bts.gov/view/dot/78706.
This research aimed to assess bridge behavior under terragator-type implements of husbandry (IoH) with 25 kip axle loads. The key objectives were as follows: 1. Identify current in-service terragator-type legal vehicles per Iowa Code 321.463.a(1)(2). 2. Perform live load tests of bridges using terragator vehicles to determine actual live load distr
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Dahlberg, J., & Phares, B. M. (2024). Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges [Tech Transfer Summary] (Report No. IHRB Project TR-798;InTrans Project 21-781). Iowa State University. Institute for Transportation. https://rosap.ntl.bts.gov/view/dot/79097
Dahlberg, Justin and Brent M. Phares. Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges [Tech Transfer Summary]. Report no. IHRB Project TR-798;InTrans Project 21-781. Iowa State University. Institute for Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/79097.
Dahlberg, Justin, and Brent M. Phares Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges [Tech Transfer Summary]. Iowa State University. Institute for Transportation, 2024, Report no. IHRB Project TR-798;InTrans Project 21-781, ROSA P. https://rosap.ntl.bts.gov/view/dot/79097.
Unintentional lane departure is a significant safety risk. Currently, available commercial lane departure warning systems use vision-based or GPS technology with lane-level resolution. These techniques have their own performance limitations in poor weather conditions. We have previously developed a lane departure detection (LDD) algorithm using sta
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Tasnim, N. Z., & Hayee, M. I. (2024). Development of a Smart Phone App to Warn the Driver of Unintentional Lane Departure Using GPS Technology (Report No. MN 2024-25). Minnesota. Department of Transportation. https://hdl.handle.net/20.500.14153/mndot.17628
Tasnim, N Z and M. Imran Hayee. Development of a Smart Phone App to Warn the Driver of Unintentional Lane Departure Using GPS Technology. Report no. MN 2024-25. Minnesota. Department of Transportation, 2024. https://hdl.handle.net/20.500.14153/mndot.17628.
Tasnim, N Z, and M. Imran Hayee Development of a Smart Phone App to Warn the Driver of Unintentional Lane Departure Using GPS Technology. Minnesota. Department of Transportation, 2024, Report no. MN 2024-25, ROSA P. https://hdl.handle.net/20.500.14153/mndot.17628.
Unintentional lane departure is a significant safety risk. Currently, available commercial lane departure warning systems use vision- based or GPS technology with lane-level resolution. These techniques have their own performance limitations in poor weather conditions. The authors have previously developed a lane departure detection (LDD) algorithm
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Lund, V., & Hayee, M. I. (2024). New Smartphone App Uses GPS Technology to Warn Drivers of Lane Departures [Research Summary]. Minnesota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/79006
Lund, Victor and M. Imran Hayee. New Smartphone App Uses GPS Technology to Warn Drivers of Lane Departures [Research Summary]. Minnesota. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/79006.
Lund, Victor, and M. Imran Hayee New Smartphone App Uses GPS Technology to Warn Drivers of Lane Departures [Research Summary]. Minnesota. Department of Transportation, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/79006.
This research proposed a composite index framework using technical, socioeconomic, and environmental aspects to measure and monitor the robustness and rapidity of various aspects of a regional transportation infrastructure’s resilience to wind and water-related hazards.
Carver, J. Z., & Choi, J. (2024). Development of a Resilience Index for the Florida Surface Transportation System [Summary]. Florida. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/73551
Carver, Jennifer Z and Juyeonge Choi. Development of a Resilience Index for the Florida Surface Transportation System [Summary]. Florida. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/73551.
Carver, Jennifer Z, and Juyeonge Choi Development of a Resilience Index for the Florida Surface Transportation System [Summary]. Florida. Department of Transportation, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/73551.
For an organization to develop a sustainable strategy that supports technical capacity, workforce retention, and innovation, it is essential to develop a strong framework for knowledge management (KM) both within individual divisions as well as organization wide. For state departments of transportation (DOTs), KM has become a topic of increasing ur
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Ivey, S., Janz, B., Camp, J., Dontoh, A., Hashemikamangar, S., Arellano, K., Sirbaugh, L., Blasoni, S., Flowers, D., Rector, C., Davis, D., Armwood-Gordon, C., Triplett, K., & Rivers, I. (2024). Identifying Critical Knowledge Gaps and Assessing Organizational Readiness for Improved Knowledge Management (Report No. RES2023-01). Tennessee. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/78009
Ivey, Stephanie, Brian Janz, Janey Camp, Anthony Dontoh, Sarah Hashemikamangar, Kassandra Arellano, and Logan Sirbaugh, et al.. Identifying Critical Knowledge Gaps and Assessing Organizational Readiness for Improved Knowledge Management. Report no. RES2023-01. Tennessee. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/78009.
Ivey, Stephanie, et al. Identifying Critical Knowledge Gaps and Assessing Organizational Readiness for Improved Knowledge Management. Tennessee. Department of Transportation, 2024, Report no. RES2023-01, ROSA P. https://rosap.ntl.bts.gov/view/dot/78009.
The primary goal of this research was to design, construct and instrument the first in-service perpetual pavement constructed with HPM. This research is expected to provide ODOT’s Office of Pavement Engineering with a method for future perpetual pavement design. Specific objectives of this research were as follows: • Conduct a literature review of
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Khoury, I., Chou, E., & Green, R. (2024). A Field Evaluation of the Perpetual Pavement Concept [Fact Sheet] (Report No. 111438). Ohio Research Institute for Transportation and the Environment. https://rosap.ntl.bts.gov/view/dot/86908
Khoury, Issam, Eddie Chou, and Roger Green. A Field Evaluation of the Perpetual Pavement Concept [Fact Sheet]. Report no. 111438. Ohio Research Institute for Transportation and the Environment, 2024. https://rosap.ntl.bts.gov/view/dot/86908.
Khoury, Issam, et al. A Field Evaluation of the Perpetual Pavement Concept [Fact Sheet]. Ohio Research Institute for Transportation and the Environment, 2024, Report no. 111438, ROSA P. https://rosap.ntl.bts.gov/view/dot/86908.
Live load field tests of bridges were carried out using certain implements of husbandry (IoH) to observe the transverse load distribution and the dynamic impacts. A finite element (FE) analysis of the field-tested bridges was performed. The strain data from the FE analysis were validated with the field test data to establish an FE analysis method f
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Dahlberg, J., Liu, Z., Jadhav, K. R., & Phares, B. M. (2024). Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges (Report No. IHRB Project TR-798;InTrans Project 21-781). Iowa State University. Institute for Transportation. https://rosap.ntl.bts.gov/view/dot/79079
Dahlberg, Justin, Zhengyu Liu, Karthian R Jadhav, and Brent M. Phares. Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges. Report no. IHRB Project TR-798;InTrans Project 21-781. Iowa State University. Institute for Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/79079.
Dahlberg, Justin, et al. Impact of Legalized 25-Kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges. Iowa State University. Institute for Transportation, 2024, Report no. IHRB Project TR-798;InTrans Project 21-781, ROSA P. https://rosap.ntl.bts.gov/view/dot/79079.
The Manual on Uniform Traffic Control Devices (MUTCD) specifies the use of yellow sheeting for pedestrian or bicycle signs and fluorescent yellow-green (FYG) for school signs, with an option for the use of FYG sheeting for pedestrian or bicycle warning signs. However, switching from yellow or fluorescent yellow (FY) to FYG for pedestrian and bicycl
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Brown, H., Edara, P., Sun, C., Chang, D. Y., Qing, Z., Tobias, P. A., Dinnen, J., & Jiang, M. (2024). Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians (Report No. cmr 24-019). Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/78606
Brown, Henry, Praveen Edara, Carlos Sun, Dae Yeol Chang, Zhu Qing, Priscilla A. Tobias, Jerrid Dinnen, and Melissa Jiang. Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians. Report no. cmr 24-019. Missouri. Department of Transportation. Construction and Materials Division, 2024. https://rosap.ntl.bts.gov/view/dot/78606.
Brown, Henry, et al. Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians. Missouri. Department of Transportation. Construction and Materials Division, 2024, Report no. cmr 24-019, ROSA P. https://rosap.ntl.bts.gov/view/dot/78606.
The goal of this project was to improve asset management through the implementation of Risk-Based Inspection (RBI) practices. This project studied risk-based processes for developing extended inspection interval policies for bridges. Prior tasks in the research included Reliability Assessment Panels from six states developing risk models for bridge
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Washer, G., Brown, H., Connor, R., Higgenbotham, V., Kute, S., & Kemayour, B. T. M. (2024). Developing Implementation Strategies for Risk Based Inspection (RBI): Back-Casting Report (Report No. cmr24-020). Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/78598
Washer, Glenn, Henry Brown, Robert Connor, Victor Higgenbotham, Susmit Kute, and Blandine Therese Mbianda Kemayour. Developing Implementation Strategies for Risk Based Inspection (RBI): Back-Casting Report. Report no. cmr24-020. Missouri. Department of Transportation. Construction and Materials Division, 2024. https://rosap.ntl.bts.gov/view/dot/78598.
Washer, Glenn, et al. Developing Implementation Strategies for Risk Based Inspection (RBI): Back-Casting Report. Missouri. Department of Transportation. Construction and Materials Division, 2024, Report no. cmr24-020, ROSA P. https://rosap.ntl.bts.gov/view/dot/78598.
This report addresses a gap in the literature by presenting the results of large-scale shear and compressibility testing of soil classified as clayey gravel and sand soil mixed with different percentages and types of TDA.
ElGawady, M. (2024). The Effect of Rubber Fills on the Performance of Infrastructure [Research Summary] (Report No. cmr 24-018). Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/78759
ElGawady, Mohamed. The Effect of Rubber Fills on the Performance of Infrastructure [Research Summary]. Report no. cmr 24-018. Missouri. Department of Transportation. Construction and Materials Division, 2024. https://rosap.ntl.bts.gov/view/dot/78759.
ElGawady, Mohamed The Effect of Rubber Fills on the Performance of Infrastructure [Research Summary]. Missouri. Department of Transportation. Construction and Materials Division, 2024, Report no. cmr 24-018, ROSA P. https://rosap.ntl.bts.gov/view/dot/78759.
Conventional bridge deck overlays made with high-performance concrete (HPC) and low-slump dense portland cement concrete (PCC) generally require a 72-hour wet curing time before they can be opened to traffic. Shorter opening times are desired to reduce the high cost of traffic control for heavily traveled urban highways. To meet this need, high ear
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Wang, K., Shankaramurthy, B. M., Anand, A., Sargam, Y., Freeseman, K., & Phares, B. M. (2024). Performance Evaluation of Very Early Strength Latex-Modified Concrete (LMC-VE) Overlay (Report No. IHRB Project TR-771). Iowa State University. Institute for Transportation. https://rosap.ntl.bts.gov/view/dot/79043
Wang, Kejin, Bharath Melugiri Shankaramurthy, Anand Anand, Yogiraj Sargam, Katelyn Freeseman, and Brent M. Phares. Performance Evaluation of Very Early Strength Latex-Modified Concrete (LMC-VE) Overlay. Report no. IHRB Project TR-771. Iowa State University. Institute for Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/79043.
Wang, Kejin, et al. Performance Evaluation of Very Early Strength Latex-Modified Concrete (LMC-VE) Overlay. Iowa State University. Institute for Transportation, 2024, Report no. IHRB Project TR-771, ROSA P. https://rosap.ntl.bts.gov/view/dot/79043.
On October 13–15, 2024, nearly 170 representatives of government, private sector consulting firms and companies, non-profit and advocacy groups, and universities joined the 2024 UCLA Lake Arrowhead Symposium on Mega Events, Major Opportunities. This report summarizes the discussions, lessons learned, and action items from the convening. Attendees h
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Matute, J. (2024). Report from the 2024 UCLA Lake Arrowhead Symposium: Mega Events, Major Opportunities. University of California, Los Angeles. Institute of Transportation Studies. https://rosap.ntl.bts.gov/view/dot/86913
Matute, Juan. Report from the 2024 UCLA Lake Arrowhead Symposium: Mega Events, Major Opportunities. University of California, Los Angeles. Institute of Transportation Studies, 2024. https://rosap.ntl.bts.gov/view/dot/86913.
Matute, Juan Report from the 2024 UCLA Lake Arrowhead Symposium: Mega Events, Major Opportunities. University of California, Los Angeles. Institute of Transportation Studies, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/86913.
Minerals, forestry, agriculture, and industrial activities in Minnesota generate substantial by-products and waste. Strategies to reuse or recycle these can reduce landfill waste, enhance public health, conserve resources, and cut costs and emissions. Building on the frameworks by Johnson et al. (2017), Saftner et al. (2019), and Saftner et al. (20
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Stenlund, D., & Saftner, D. (2024). Re-Use Of Minnesota Waste Material In Sustainably Design Soils [Research Summary]. Minnesota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/79017
Stenlund, Dwayne and David Saftner. Re-Use Of Minnesota Waste Material In Sustainably Design Soils [Research Summary]. Minnesota. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/79017.
Stenlund, Dwayne, and David Saftner Re-Use Of Minnesota Waste Material In Sustainably Design Soils [Research Summary]. Minnesota. Department of Transportation, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/79017.
Minnesota. Department of Transportation. Local Road Research Board
2024-10-01
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While seal coating has been widely used as a cost-effective strategy in asphalt pavement preservation by the Minnesota Department of Transportation (MnDOT) and local agencies to extend the life of pavements, some cities and counties in Minnesota have reported their concerns about the premature stripping of street pavements that have been seal coate
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Minnesota. Department of Transportation. Local Road Research Board (2024). Synthesis of Seal Coat Research in Minnesota (Report No. 2024RIC06). Minnesota. Department of Transportation. https://hdl.handle.net/20.500.14153/mndot.17507
Minnesota. Department of Transportation. Local Road Research Board. Synthesis of Seal Coat Research in Minnesota. Report no. 2024RIC06. Minnesota. Department of Transportation, 2024. https://hdl.handle.net/20.500.14153/mndot.17507.
Minnesota. Department of Transportation. Local Road Research Board Synthesis of Seal Coat Research in Minnesota. Minnesota. Department of Transportation, 2024, Report no. 2024RIC06, ROSA P. https://hdl.handle.net/20.500.14153/mndot.17507.
Max-pressure (MP) traffic signal control is a new and innovative control algorithm that uses upstream and downstream vehicle counts to determine signal timing that maximizes throughput. While this method has been extensively tested in simulation, it has not yet been tested on actual traffic signals in the US. To close this gap, this report presents
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Stern, R., Levin, M. W., & Kiani, A. (2024). Toward Implementation of Max-Pressure Control on Minnesota Roads: Phase 2 (Report No. MN 2024-26). Minnesota. Department of Transportation. https://hdl.handle.net/20.500.14153/mndot.17680
Stern, Raphael, Michael W. Levin, and Amir Kiani. Toward Implementation of Max-Pressure Control on Minnesota Roads: Phase 2. Report no. MN 2024-26. Minnesota. Department of Transportation, 2024. https://hdl.handle.net/20.500.14153/mndot.17680.
Stern, Raphael, et al. Toward Implementation of Max-Pressure Control on Minnesota Roads: Phase 2. Minnesota. Department of Transportation, 2024, Report no. MN 2024-26, ROSA P. https://hdl.handle.net/20.500.14153/mndot.17680.
The surface free energy of asphalt binders and aggregates is a critical material property related to the moisture sensitivity of asphalt mixtures. Surface free energies of these materials can be used to quantitatively determine the interfacial adhesive bond strength between two materials and the tendency of water to displace this bond based on fund
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Verma, P., & Darabi, M. K. (2024). Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas, Phase I: Surface Free Energy of Binders (Report No. KS-24-06). Kansas. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/78036
Verma, Payal and Masoud K Darabi. Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas, Phase I: Surface Free Energy of Binders. Report no. KS-24-06. Kansas. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/78036.
Verma, Payal, and Masoud K Darabi Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas, Phase I: Surface Free Energy of Binders. Kansas. Department of Transportation, 2024, Report no. KS-24-06, ROSA P. https://rosap.ntl.bts.gov/view/dot/78036.
This study presents a method to estimate fare payment compliance within the Massachusetts Bay Transportation Authority bus system using only automatically collected data from the Automated Fare Collection and Automated Passenger Counting systems. Data from over 787,000 passenger boardings were used to identify patterns of fare system on-interaction
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Gonzales, E. J., Gao, S., & Azhdari, M. (2024). Measuring Fare Payment Compliance on MBTA Buses (Report No. 24-065). Massachusetts. Dept. of Transportation. Office of Transportation Planning. https://rosap.ntl.bts.gov/view/dot/81919
Gonzales, Eric J., Song Gao, and Mahdi Azhdari. Measuring Fare Payment Compliance on MBTA Buses. Report no. 24-065. Massachusetts. Dept. of Transportation. Office of Transportation Planning, 2024. https://rosap.ntl.bts.gov/view/dot/81919.
Gonzales, Eric J., et al. Measuring Fare Payment Compliance on MBTA Buses. Massachusetts. Dept. of Transportation. Office of Transportation Planning, 2024, Report no. 24-065, ROSA P. https://rosap.ntl.bts.gov/view/dot/81919.
This report is the response to the North Dakota Legislature's request for a study of the transportation infrastructure needs of all counties, townships and tribes in the state. In 2019, the North Dakota Legislature advanced HB 1066 which had a provision for funding distributions to non-oil producing counties based on the most recent version of this
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Dybing, A., Wentz, B., Bengtson, K., Hasan, S., Fuchs, B., Jirik, T., & Sharma, K. (2024). Infrastructure Needs: North Dakota’s County, Township and Tribal Roads and Bridges: 2024-2043. Upper Great Plains Transportation Institute. https://rosap.ntl.bts.gov/view/dot/77992
Dybing, Alan, Bradley Wentz, Kelly Bengtson, Sharijad Hasan, Bryon Fuchs, Tom Jirik, and Kshitij Sharma. Infrastructure Needs: North Dakota’s County, Township and Tribal Roads and Bridges: 2024-2043. Upper Great Plains Transportation Institute, 2024. https://rosap.ntl.bts.gov/view/dot/77992.
Dybing, Alan, et al. Infrastructure Needs: North Dakota’s County, Township and Tribal Roads and Bridges: 2024-2043. Upper Great Plains Transportation Institute, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/77992.
The objective of this research study is to synthesize existing research and review the state of the practice regarding the use of FYG for pedestrian and bicyclist signs. The research methodology includes a literature review, survey of departments of transportation (DOTs) and metropolitan planning organizations (MPOs) and follow up interviews with a
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Brown, H. (2024). Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians [Research Summary]. Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/78607
Brown, Henry. Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians [Research Summary]. Missouri. Department of Transportation. Construction and Materials Division, 2024. https://rosap.ntl.bts.gov/view/dot/78607.
Brown, Henry Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians [Research Summary]. Missouri. Department of Transportation. Construction and Materials Division, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/78607.
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