These Transportation Research Syntheses provide brief summaries of recent research on a topic of current interest.
- Active: Life Cycle Cost of Local Roads
- Active: Aggregate Base – Is class 5 still the best on local roads?
- Active: Notifying the Public of Local Road Closures via Common Smartphone Map Apps
- October 2018: Local Agency Permit Fee Policies for Oversize/Overweight Vehicles
- August 2018: Permit Fee Policies for Oversize/Overweight Vehicles
- March 2018: High Friction Surface Treatments
- March 2018: High Friction Surface Treatments: Supplement
- September 2017: Alternative Deicers for Snow and Ice Control
- March 2017: Local Bridge Removal Policies and Programs
- February 2017: Managing Unspent Federal Metropolitan Planning Funds
- September 2016: Recycled Materials in Unbound Aggregate Base Layers in Minnesota (TRS 1604)
- June 2016: Consolidating Asset Management of MN Local Agencies (TRS 1603)
- June 2016: Partnership for Promoting Pollinator Habitat (TRS 1601)
- February 2016: Alternatives to Sealcoats (TRS 1602)
- June 2015: Work Zone Intrusion Reporting: A Survey of State Practices (TRS 1506)
- February 2015: Future Impact on Minnesota Transportation Revenue Collection of Commercial Fleet Conversion from Diesel Fuel to Natural Gas (TRS 1505)
- February 2015: Summer Maintenance Operations Reporting: A Survey of State and National Practice (TRS 1504)
- January 2015: Benefits and Costs of Increasing Truck Load Limits: A Literature Review (TRS 1503)
- January 2015: Coordination Between State Transportation Agencies in Multi-State Metropolitan Planning Areas: A Survey of State Practice (TRS 1502)
- January 2015: Monitoring Motor Vehicle Driver Fatigue (TRS 1501)
- November 2014: New Approaches for Roundabout Lighting to Enhance Pedestrian Safety (TRS 1413)
- October 2014: Strategic Plans for Transportation Research Programs: A Survey of State and National Practice (TRS 1412)
- October 2014: Chloride Free Snow and Ice Control Material (TRS 1411)
- June 2014: Gravel Road Management Tools (TRS 1407)
- April 2014: Writing Literature Reviews for Transportation Research Projects (TRS 1405)
- March 2014: Transportation Agency Practices Currently Employed for Bridge Maintenance Painting Operations: Findings from a National Survey (TRS 1404)
- February 2014: Joma Snowplow Blade Life Span: A Survey of State Experience (TRS 1403)
- February 2014: Best Practices in Pavement Design for Design-Build Projects (TRS 1402)
- February 2014: Airspace Protection and Land Use Zoning: A Nationwide Review of State Statutes (TRS 1401)
- September 2013: STIP and TIP Amendment Procedures: A Review of State and MPO Practices (TRS 1313)
- June 2013: Applications of Computational Fluid Dynamics for River Simulation: State of the Practice (TRS 1311)
- February 2014: Investigation of Performance Requirements of Full Depth Reclamation Stabilization (TRS 1310)
- June 2013: Quantifying the Economic Impact of Bicycling: A Literature Review with Implications for Minnesota (TRS 1309)
- June 2013: Bridge Safety Inspection and NBIS Bridge Inspection Program Administration (TRS 1308)
- June 2013: Cost Sharing Policies of State Transportation Agencies (TRS 1307)
- July 2013: Pedestrian Snow Removal Best Practices and Lessons Learned (TRS 1306)
- May 2013: Asset Management for Retaining Walls (TRS 1305)
- May 2013: The Use of Life-Cycle Cost Analysis to Evaluate Public-Private Partnerships (TRS 1304)
- April 2013: Mobile Traffic Signals in Lieu of Flaggers for Moving Operations (TRS 1303)
- March 2013: Culvert Design for Aquatic Organism Passage: Culvert Design Practices Incorporating Sediment Transport (TRS 1302)
- March 2013: Performance-Based Specifications for Temporary Erosion and Sediment Control During Construction: A Survey of State Practice (TRS 1301)
- October 2012: Ultra-Thin Polymer Concrete Overlays for Bridge Decks (TRS 1212)
- November 2012: State Highway System Classification and Investment: A Survey of State Practice (TRS 1211)
- October 2012: Integrated Corridor Management: A Review on the Theory and Practice (TRS 1210)
- October 2012: Culvert Repair Best Practices, Specifications and Special Provisions: Task C Research Synthesis (TRS 1209)
- October 2012: Power Sources for Automatic Traffic Recorders (TRS 1208)
- September 2012: Collecting and Managing Traffic Data on Local Roads (TRS 1207)
- October 2012: Traffic Forecasting on Trunk Highways in Nonmetropolitan Areas: A Survey of State Practice (TRS 1206)
- August 2012: Mitigating Highway Construction Impacts With Transit (TRS 1205)
- August 2012: Methods for Setting Posted Speed Limits (TRS 1204)
- July 2012: Innovative Bridge Construction for Minnesota Local Roads (TRS 1203)
- June 2012: Far-Field Testing of Noise Wall Effectiveness: Survey of State Practice and Literature Scan (TRS 1202)
- July 2012: Impact of Vibratory Equipment to Surrounding Environments During Construction (TRS 1201)
- November 2011: Bridge Deck Cracking (TRS 1105)
- December 2011: Use of Social Media by Minnesota Cities and Counties (TRS 1104)
- September 2011: Small MPO Funding (TRS 1103)
- September 2011: Estimating Non-Automobile Mode Share (TRS 1102)
- February 2011: Snow Plow Cutting Edges for Improved Plowing Performance, Reduced Blade Wear, and Reduced Surface Impacts (TRS 1101)
- November 2010: Headlight Use (TRS 1009)
- September 2010: Potential Benefits to the Freight Industry of Distance Based Fees (TRS 1008)
- July 2010: Unpaving Roads (TRS 1007)
- May 2010: Cadastral and Right of Way Data Sharing (TRS 1006)
- March 2010: State DOT Experiences with Primavera P6 Project Management Software (TRS 1005)
- March 2010: ADA Compliance Reference and Training Materials (TRS 1004)
- March 2010: Developing a Culture of Innovation (TRS 1003)
- March 2010: Effectiveness of Traffic Signs on Local Roads (TRS1002)
- March 2010: Effects of Major Traffic Generators on Local Highway Systems (TRS1001)
- August 2009: Issues of Concern Related to Underground Infiltration Systems for Stormwater Management & Treatment (TRS0903)
- May 2009: Anti-icing in Winter Maintenance Operations: Examination of Research and Survey of State Practice ( TRS0902)
- January 2009: Methods and Practices for Control of Canada Thistle (TRS0901)
- August 2008: Planned and Unplanned Disruptions to Transportation Networks (TRS0803)
- August 2008: Methods of Estimating the Economic Impact of Transportation Improvements (TRS0802)
- June 2008: Traffic Calming (TRS0801)
- August 2007: Transverse Rumble Strips (TRS0701)