MDOT - DTMB
Michigan Department of Transportation
Research
Administration Repository
Background:
Research Administration, or RAd, supports transportation research across a variety of different focus areas. Reports, spotlights, and other research related documents are available to search and browse in the online repository. To open any document, a file will need to be downloaded to your device. If you have any problems downloading any documents, please contact Research Administration.
Questions:
Note:Select any check box under Report Number, Publication Title, Author, Published Date, Keywords or File Name and enter a text in the Search By text box in the left navigation panel and press find button for Research Administration search results.
| SPR-1704 | Dynamic signs along Michigan?s freeway ramps improve driver behavior | Dynamic speed feedback sign, freeway exit ramp, horizontal curves, lane departure crashes, driver behavior | SPR-1704-Spotlight.pdf | ||
| SPR-1692 | Green Strobes Added to MDOT Winter Maintenance Vehicles Increase Visibility | CTC & Associates | 02/23/2024 | winter maintenance, warning light, green strobe, safety, visibility, snowplow, flashing pattern, conspicuity, glare, implementation | SPR-1692-Implementation-Spotlight.pdf |
| SPR-1734 | Making high-speed corridors safer for pedestrians and cyclists | CTC & Associates | 01/23/2024 | Pedestrian-vehicle crashes, Bicycle crashes, Higher speed roads, Nighttime crashes, Light level readings, High crash corridors, Highway factors in crashes, Crash site visits | SPR-1734-Spotlight.pdf |
| SPR-1734 | Effective Pedestrian/Non-Motorized Crossing Enhancements Along Higher Speed Corridors | Ron Van Houten, Valerian Kwigizile, Jun-Seok Oh, Sia Mwende, and Baraah Qawasmeh | 10/30/2023 | Pedestrian-vehicle crashes, Bicycle crashes, Higher speed roads, Nighttime crashes, Light level readings, High crash corridors, Highway factors in crashes, Crash site visits | SPR-1734-Report.pdf |
| SPR-1725 | Maximizing the safety, economic and environmental benefits of Michigan roundabouts | CTC & Associates | 07/01/2023 | Roundabouts, yielding behavior, speed selection, safety, empirical | SPR-1725-Spotlight.pdf |
| SPR-1725 | Evaluating the Performance and Safety Effectiveness of Roundabouts - An Update | 01/30/2023 | Roundabouts, yielding behavior, speed selection, safety, empirical | SPR-1725-Report.pdf | |
| SPR-1714 | Evaluating the Impacts of the 2017 Legislative Mandated Speed Limit Increases | Peter Savolainen; Tomothy Gates | 06/30/2022 | speed limit increase, freeways, two-lane highways, COVID-19 | SPR-1714-Report.pdf |
| SPR-1708 | Updating best practices to keep pedestrians and bicyclists safe | 04/01/2022 | Pedestrian design, bicycle design, towards zero death, vision zero, crossing enhancements, COVID-19 impacts, bicycle facilities, safety programs | SPR-1708-Spotlight.pdf | |
| SPR-1706 | Evaluating safety and traffic improvements along Michigan?s first flex route | CTC & Associates | 04/01/2022 | US-23, Flex route, performance, safety, public perception | SPR-1706-Spotlight.pdf |
| SPR-1708 | Synthesis of National Best Practices on Pedestrian and Bicycle Design, Guidance, and Technology Innovations | Timothy Gates, Tongbin Teresa Qu, J | 01/27/2022 | Pedestrian design, bicycle design, towards zero death, vision zero, crossing enhancements, COVID-19 impacts, bicycle facilities, safety programs | SPR-1708-Report.pdf |
| SPR-1704 | Measure the Operational Cost and Benefit of Speed Feedback Signs | Timothy J. Gates, Peter T. Savolain | 01/23/2022 | Dynamic speed feedback sign, freeway exit ramp, horizontal curves, lane departure crashes, driver behavior | SPR-1704-Report.pdf |
| SPR-1706 | US-23 Performance, Safety, and Perception Assessment | Eva Kassens-Noor, Peter T. Savolain | 01/21/2022 | US-23, Flex route, performance, safety, public perception | SPR-1706-Report.pdf |
| SPR-1686 | Insights into the Effective Use of Dynamic Message Signs for Traffic Safety | 11/01/2021 | Safety message; dynamic message sign; changeable message sign | SPR-1686-Spotlight.pdf | |
| SPR-1686 | Effectiveness of Crash Fact/Safety Message Signs on Dynamic Message Signs | Peter T. Savolainen, Timothy J. Gat | 08/11/2021 | Safety message; dynamic message sign; changeable message sign | SPR-1686-Report.pdf |
| SPR-1692 | Green warning lights make winter maintenance trucks more visible | 12/01/2020 | winter maintenance, warning light, green strobe, safety, visibility, snowplow, flashing pattern, conspicuity, glare | SPR-1692-Spotlight.pdf | |
| SPR-1692 | Effectiveness of Green Strobes on Winter Maintenance Vehicles and Equipment | Ali Zockaie, Ramin Saedi, Fatemeh F | 08/31/2020 | winter maintenance, warning light, green strobe, safety, visibility, snowplow, flashing pattern, conspicuity, glare | SPR-1692-Report.pdf |
| SPR-1683 | Michigan draws from effective safety strategies nationwide to reduce road deaths and injuries | 11/01/2019 | Strategic Highway Safety Plans, Towards Zero Deaths, Highway Safety Improvement Program, SHSP, TZD, HSIP, Vision Zero | SPR-1683-Spotlight.pdf | |
| SPR-1683 | Evaluation of the Michigan Department of Transportation?s Highway Safety Programs | Jonathan Kay, Timothy Gates, Andrew | 07/26/2019 | Strategic Highway Safety Plans, Towards Zero Deaths, Highway Safety Improvement Program, SHSP, TZD, HSIP, Vision Zero | SPR-1683-Report.pdf |
| SPR-1677 | Evaluation/Report for Collision Avoidance & Mitigation System (CAMS) on Winter Maintenance Trucks (WMT) | 09/21/2018 | Collision avoidance and mitigation systems, winter maintenance operation, driver behavioral analysis, encroachment rate, response time, relative headway, safety improvement, warning light | SPR-1677-Report.pdf | |
| SPR-1645 | Site-Specific Data will Improve Safety Decisions for Michigan Rural Roads | 08/01/2018 | Safety performance function; SPF; intersections; segments; signalized; stopcontrolled; crash modification factor; CMF; severity distribution function; SDF | SPR-1645-Spotlight.pdf | |
| SPR-1655 | Michigan's Traffic Incident Management Effort: Progress and Future Vision | 07/01/2018 | TIM, traffic incident management, first responder, incident, performance measures, program evaluation, training, social media, funding, After Action Reviews, Steer it Clear it, move over, slow down, h | SPR-1655-Spotlight.pdf | |
| SPR-1672 | Identifying Potential Workzone Countermeasures Using Connected-Vehicle and Driving Data | 06/04/2018 | Workzone Safety, Connected Vehicle, Workzone Crash, Workzone Speed, DSRC, V2V, V2I | SPR-1672-Report.pdf | |
| SPR-1655 | Further Assessments of Safe, Quick Clearance Strategies, Phase II | 05/04/2018 | TIM, traffic incident management, first responder, incident, performance measures, program evaluation, training, social media, funding, After Action Reviews, Steer it Clear it, move over, slow down, h | SPR-1655-Report.pdf | |
| SPR-1645 | Michigan Rural Segment Safety Performance Function (SPFs) Development and Support | 03/31/2018 | Safety performance function; SPF; intersections; segments; signalized; stopcontrolled; crash modification factor; CMF; severity distribution function; SDF | SPR-1645-Report.pdf | |
| SPR-1653 | Design Enhancements Make Roads Safer For Older Drivers | 07/01/2017 | Older drivers, crashes, roadway features, roadway design guidance. | SPR-1653-Spotlight.pdf | |
| SPR-1646 | MDOT's Successful Road Delineation Program Will Become Even Better | 06/01/2017 | delineation, short range, long range, pavement markings, benefit-cost, safety | SPR-1646-Spotlight.pdf | |
| SPR-1643 | Gateway treatment makes crosswalks safer for pedestrians | 05/01/2017 | SPR-1643-Spotlight.pdf | ||
| SPR-1646 | Evaluation of Road Delineation of Practices in Michigan | 03/31/2017 | delineation, short range, long range, pavement markings, benefit-cost, safety | SPR-1646-Report.pdf | |
| SPR-1653 | Association of Michigan's Older Adult Crashes with Roadway Features | 03/31/2017 | Older drivers, crashes, roadway features, roadway design guidance. | SPR-1653-Report.pdf | |
| SPR-1643 | Comparison of Alternative Pedestrian Crossing Treatments: Follow-Up Report | Ron Van Houten, Jonathan Hochmuth | 12/01/2016 | In-street sign, R1-6 Sign, Gateway Treatment of | SPR-1643-Report.pdf |
| SPR-1639 | Michigan Urban Trunkline Segments Safety Performance Functions (SPFs) Development and Support | 07/01/2016 | SPR-1639-Report.pdf | ||
| SPR-1639 | Local Data Will Help Michigan Make Better Safety Investment Decisions | 07/01/2016 | SPR-1639-Spotlight.pdf | ||
| SPR-1638 | Gateway Treatment Alternatives for Pedestrian Crossings | 02/01/2016 | SPR-1638-Spotlight.pdf | ||
| SPR-1638 | Comparison of Alternative Pedestrian Crossing Treatments | 02/01/2016 | SPR-1638-Report.pdf | ||
| SPR-1626 | Improving of Michigan Climatic Files in Pavement ME Design | 10/01/2015 | SPR-1626-Report.pdf | ||
| SPR-1636 | Evaluation of Michigan?s Engineering Improvements for Older Drivers | 09/01/2015 | SPR-1636-Report.pdf | ||
| SPR-1636 | New Signs and Signals Make Roads Safer for Older Drivers | 09/01/2015 | SPR-1636-Spotlight.pdf | ||
| SPR-1628 | Michigan Urban Trunkline Intersections Safety Performance Function (SPFs) Development and Support | 06/01/2015 | SPR-1628-Report.pdf | ||
| SPR-1628 | Local Data Will Help Michigan Make Better Safety Investment Decisions | 06/01/2015 | SPR-1628-Spotlight.pdf | ||
| SPR-1609B | Evaluating Outcomes of Raising Speed Limits on High Speed Non-Freeways | 04/01/2015 | SPR-1609B-Report.pdf | ||
| SPR-1627 | Evaluation of Non-Freeway Rumble Strips ? Phase II - Implementation Guidelines | 03/01/2015 | SPR-1627-Implementation-Guidelines.pdf | ||
| SPR-1627 | Centerline Rumble Strips on Rural Highways Shown to Cut Crashes in Half | 03/01/2015 | SPR-1627-Spotlights.pdf | ||
| SPR-1627 | Evaluation of Non-Freeway Rumble Strips ? Phase II | 03/01/2015 | SPR-1627-Report.pdf | ||
| SPR-1612 | Cable Median Barriers: A Cost-Effective Means To Save Lives | 10/01/2014 | SPR-1612-Spotlight.pdf | ||
| SPR-1612 | Study of High Tension Cable Barrier on Michigan Roadways | 10/01/2014 | SPR-1612-Report.pdf | ||
| SPR-1609A | Evaluating the Impacts of Proposed Speed Limit Increases in Michigan | 07/01/2014 | SPR-1609A-Spotlight.pdf | ||
| SPR-1609A | Evaluating the Impacts of Speed Limit Policy Alternatives | 07/01/2014 | SPR-1609A-Report.pdf | ||
| SPR-1592 | Improving Mobility and Transportation Options for Michigan's Rural Seniors | 12/01/2012 | SPR-1592-Spotlight.pdf | ||
| SPR-1592 | Recommendations for Meeting the Mobility Needs of Older Adults in Rural Michigan | 12/01/2012 | SPR-1592-Report.pdf | ||
| SPR-1583 | Implementation of Quick Clearance in Michigan | 09/01/2012 | SPR-1583-Report.pdf | ||
| SPR-1581 | Best Practices for Emergency Rerouting | 09/01/2012 | SPR-1581-Report.pdf | ||
| SPR-1583 | Spreading the Word About the Quick Clearance Law | 09/01/2012 | SPR-1583-Spotlight.pdf | ||
| SPR-1575 | Impact of Non-Freeway Rumble Strips ? Phase 1 | 06/01/2012 | SPR-1575-Report.pdf | ||
| SPR-1575 | Evaluating the Benefits of Centerline Rumble Strips on Rural Highways | 06/01/2012 | SPR-1575-Spotlight.pdf | ||
| SPR-1555 | Safety Analysis of 4-Lane to 3-Lane Conversions (Road Diets) in Michigan | 01/01/2012 | SPR-1555-Report.pdf | ||
| SPR-1555 | Safety and Operational Analysis of Four-Lane to Three-Lane Conversions (Road Diets) in Michigan | 01/01/2012 | SPR-1555-Spotlight.pdf | ||
| SPR-1561 | Improving Driver Safety with Behavioral Countermeasures | 09/01/2011 | SPR-1561-Report.pdf | ||
| SPR-1561 | Changing the Behavior to Improve Driver Safety | 09/01/2011 | SPR-1561-Spotlight.pdf | ||
| SPR-1562 | Recommendations for Meeting the Transportation Needs of Michigan?s Aging Population | 09/01/2011 | SPR-1562-Report.pdf | ||
| SPR-1562 | Enhancing the Safety and Mobility of Michigan's Older Residents | 09/01/2011 | SPR-1562-Spotlight.pdf | ||
| SPR-1542 | Roundabouts: How to Get Around a Safer Intersection | 03/01/2011 | SPR-1542-Spotlight.pdf | ||
| SPR-1542 | Improving Driver?s Ability to Safely and Effectively Use Roundabouts: Educating the Public to Negotiate Roundabouts | 03/01/2011 | SPR-1542-Report.pdf | ||
| SPR-1474 | Investigation of Breakaway Light Standards | 04/01/2006 | SPR-1474-Report.pdf | ||
| SPR-1475 | Deer-Vehicle Collisions: Understanding of Accident Characteristics and Drivers Attitude Awareness and Involvement | 01/01/2006 | SPR-1475-Report.pdf | ||
| SPR-1446 | Safety Performance Evaluation of Michigan?s 4x5 Portable Sign Support | 06/01/2003 | SPR-1446-Report.pdf | ||
| RR-774 | Identification of Locations Suitable for Raising the Speed Limit on Full Access Roads in Michigan | 09/01/2001 | RR-774-Report.pdf | ||
| RR-771 | The Impact of Raising the Speed Limit on Freeways in Michigan ? Vol 1 & 2 | 08/01/2000 | RR-771-Report.pdf | ||
| RR-770 | Effect on Crashes Due to Construction of Directional Crossovers to Replace Bidirectional Crossovers | 02/01/2000 | RR-770-Report.pdf | ||
| RR-768 | Conversion of Streets from One-Way to Two-Way Operation | 01/01/2000 | RR-768-Report.pdf | ||
| RR-767 | An Evaluation of Speed Control Techniques in Work Zones | 07/01/1999 | RR-767-Report.pdf | ||
| RR-759 | 1997 Work Zone Speed Study | 08/01/1998 | RR-759-Report.pdf | ||
| RR-754 | An Evaluation of the Michigan 70 MPH Speed Limit | 12/01/1996 | RR-754-Report.pdf | ||
| RR-749 | Direct Observation of Safety Belt Use in Michigan - Fall 1995 | 10/01/1995 | RR-749-Report.pdf | ||
| RR-743 | Direct Observation of Safety Belt Use in Michigan - Fall 1994 | 10/01/1994 | RR-743-Report.pdf | ||
| RR-734 | Effect of Large Trucks on Traffic Safety and Operations | 06/01/1993 | RR-734-Report.pdf | ||
| RR-730 | Comparison of Speed Zoning Procedures and Their Effectiveness | 09/01/1992 | RR-730-Report.pdf | ||
| RR-725 | Safety and Structural Implications of Seat Belts on Transit Buses ? Phase II & III | 09/01/1991 | RR-725-Report.pdf | ||
| RR-709 | State Trunkline Accident Surveillance Program - City of Detroit | 03/01/1990 | RR-709-Report.pdf | ||
| RR-708 | State Trunkline Accident Surveillance Program - St. Clair County | 01/01/1990 | RR-708-Report.pdf | ||
| RR-697 | Transportation Safety in Michigan - Annual Report | 01/01/1989 | RR-697-Report.pdf | ||
| RR-693 | 15th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1987-1988 | 08/01/1988 | RR-693-Report.pdf | ||
| RR-692 | The Safety of Farm Truck Operations | 06/01/1988 | RR-692-Report.pdf | ||
| RR-686 | Analysis of Accident Rates of Heavy-Duty Vehicles | 04/01/1988 | RR-686-Report.pdf | ||
| RR-685 | Analysis of Speed Zoning Effectiveness | 03/01/1988 | RR-685-Report.pdf | ||
| RR-682 | Transportation Safety in Michigan - Annual Report | 01/01/1988 | RR-682-Report.pdf | ||
| RR-678 | The Use of Funneling as a Traffic Control Device to Reduce Speeds Within Freeway Construction Zones | 08/01/1987 | RR-678-Report.pdf | ||
| RR-660 | 13th Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1986 | RR-660-Report.pdf | ||
| RR-649 | 13th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1985-1986 | 01/01/1986 | RR-649-Report.pdf | ||
| RR-647 | Vehicle and Geometric Variables Related to Accidents in Rural No-Passing Zones | 11/01/1985 | RR-647-Report.pdf | ||
| RR-643 | An Investigation of Swareflex Wildlife Warning Reflectors | 07/01/1985 | RR-643-Report.pdf | ||
| RR-634 | 12th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1984-1985 | 01/01/1985 | RR-634-Report.pdf | ||
| RR-633 | A Report on the State of the Practice on No Passing Zone Signing and Marking | 12/01/1984 | RR-633-Report.pdf | ||
| RR-631 | User?s Manual: On Traffic Cost-Effectiveness Evaluation of Barriers | 11/01/1984 | RR-631-Report.pdf | ||
| SPR-1253 | An Examination of Studies Which Investigate the Question of Accident Reduction Through Full License Plate Reflectorization | 10/01/1984 | SPR-1253-Report.pdf | ||
| RR-629 | An Evaluation of Effectiveness of Deer Crossing Warning Signs | 09/01/1984 | RR-629-Report.pdf | ||
| SPR-1249 | Evaluation of Glare Screen | 08/01/1984 | SPR-1249-Report.pdf | ||
| RR-621 | 11th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1983-1984 | 01/01/1984 | RR-621-Report.pdf | ||
| RR-617 | 10th Annual Report of Michigan's Overall Highway Safety Improvement Program | 09/01/1983 | RR-617-Report.pdf | ||
| RR-616 | Nighttime Legibility of License Plates | 07/01/1983 | RR-616-Report.pdf | ||
| SPR-1221 | Evaluation of Breakaway Cable Terminal Endings on Guardrail | 05/01/1983 | SPR-1221-Report.pdf | ||
| RR-611 | 10th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1982-1983 | 01/01/1983 | RR-611-Report.pdf | ||
| RR-577 | An Evaluation of 4-Way Stop Sign Control | 02/01/1981 | RR-577-Report.pdf | ||
| RR-576 | 8th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1980-1981 | 01/01/1981 | RR-576-Report.pdf | ||
| RR-573 | Evaluation of Five Safety Improvement Projects | 12/01/1980 | RR-573-Report.pdf | ||
| RR-574 | Project BEAR (Broad Emergency Assistance Radio) One Year Evaluation | 12/01/1980 | RR-574-Report.pdf | ||
| RR-570 | 7th Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1980 | RR-570-Report.pdf | ||
| RR-547 | 6th Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1979 | RR-547-Report.pdf | ||
| RR-549 | A Comparative Analysis of Truck Accidents in the State of Michigan | 08/01/1979 | RR-549-Report.pdf | ||
| SPR-1116 | Anti-Glare Screen Median Fence | 05/01/1979 | SPR-1116-Report.pdf | ||
| SPR-1118 | A Probability Model for Determining the Safety Benefits of Median Barrier Installations | 05/01/1979 | SPR-1118-Report.pdf | ||
| RR-532 | 6th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1978-1979 | 01/01/1979 | RR-532-Report.pdf | ||
| SPR-1106 | A Survey of Median Barriers and Highway Safety | 01/01/1979 | SPR-1106-Report.pdf | ||
| RR-511 | 5th Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1978 | RR-511-Report.pdf | ||
| RR-509 | Guidelines for Traffic Control in School Areas | 07/01/1978 | RR-509-Report.pdf | ||
| RR-495 | 5th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1977-1978 | 01/01/1978 | RR-495-Report.pdf | ||
| RR-493 | A Study of Accident Experience at Michigan Trunkline Intersection Control Beacon Installations | 12/01/1977 | RR-493-Report.pdf | ||
| SPR-1066 | Raised Pavement Markers | 07/01/1977 | SPR-1066-Report.pdf | ||
| RR-480 | Analysis of Truck Accidents in Michigan | 06/01/1977 | RR-480-Report.pdf | ||
| RR-479 | Concrete Median Barrier Study During Periods of Snow Accumulation | 05/01/1977 | RR-479-Report.pdf | ||
| RR-469 | 4th Annual Report of Michigan's Overall Highway Safety Improvement Program: 1976-1977 | 01/01/1977 | RR-469-Report.pdf | ||
| RR-464 | A Study to Identify Hydroplaning Accidents | 12/01/1976 | RR-464-Report.pdf | ||
| SPR-928 | Lights and Lighting for Hazard Warning and Delineation | G.M. Smith, M.H. Janson | 10/01/1976 | Field studies; Flashing traffic signals; Hazard markings; Highway delineators; Lighting; Simulation; Vision; Yellow interval (Traffic signal cycle) | SPR-928-Report.pdf |
| RR-452 | A Study of Two-Lane Rural Roadside Accidents | 08/01/1976 | RR-452-Report.pdf | ||
| SPR-995 | Median Barriers and Highway Safety | L. F. Holbrook, Wen Hou Kuo | 05/01/1976 | guardrail, cable barriers, median barriers, barrier installation, injury property damage, highway design, risk analysis | SPR-995-Report.pdf |
| SPR-988 | A Study of Reflectorized Llicense Plates and Night Accident Reduction and Cost/Benefit Analysis | L.F. Holbrook | 02/01/1976 | Analysis, Costs, Reflective Materials, Cost analysis, Benefit cost analysis | SPR-988-Report.pdf |
| RR-426 | 3rd Annual Report of Michigan's Overall Highway Safety Improvement Program: 1975-1976 | 01/01/1976 | RR-426-Report.pdf | ||
| RR-427 | A Traffic Accident Analysis in Ottawa County | 01/01/1976 | RR-427-Report.pdf | ||
| SPR-980 | Trial Installation of Rumble Strips in Asphalt Shoulders | J.E. Simonsen | 12/01/1975 | M-78, Genesee county, Shiawassee county, imprinted corrugations, bituminous stabilized material, bituminous aggregate, sound levels | SPR-980-Report.pdf |
| RR-418 | 2nd Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1975 | RR-418-Report.pdf | ||
| SPR-946 | Office Memorandum: Michigan?s Accident Experience with Glass Bead License Plate Reflectorization | L.F. Holbrook | 06/30/1975 | SPR-964-Report.pdf | |
| RR-410 | Effects of the Energy Crisis and 55 MPH Speed Limit in Michigan | 04/01/1975 | RR-410-Report.pdf | ||
| RR-407 | 1973 Accident Profiles for the State Highway System | 03/01/1975 | RR-407-Report.pdf | ||
| RR-404 | Design Guides for Roadside Safety Improvement Program: Task 1 | 01/01/1975 | RR-404-Report.pdf | ||
| RR-395 | 2nd Annual Report of Michigan's Overall Highway Safety Improvement Program: 1974-1975 | 01/01/1975 | RR-395-Report.pdf | ||
| RR-396 | No Passing Zone Resurvey of State Highways | 01/01/1975 | RR-396-Report.pdf | ||
| RR-391 | Safety Aspects of the 55 MPH Speed Limit | 12/01/1974 | RR-391-Report.pdf | ||
| RR-379 | 1st Annual Report of Michigan's Overall Highway Safety Improvement Program | 08/01/1974 | RR-379-Report.pdf | ||
| RR-380 | A Traffic Accident Analysis of High Accident Locations in the city of Marquette | 08/01/1974 | RR-380-Report.pdf | ||
| RR-381 | Analysis of Interstate Accidents in Michigan | 08/01/1974 | RR-381-Report.pdf | ||
| RR-372 | Analysis of Guardrail Accidents in Michigan | 07/01/1974 | RR-372-Report.pdf | ||
| RR-373 | 1973 Analysis of State Highway Accident Facts | 07/01/1974 | RR-373-Report.pdf | ||
| RR-365 | A Traffic Accident Analysis and Traffic Control Devices Inventory in Berrien County | 04/01/1974 | RR-365-Report.pdf | ||
| RR-364 | A Traffic Accident Analysis of High Accident Locations in Jackson County | 03/01/1974 | RR-364-Report.pdf | ||
| SPR-903 | Office Memorandum: Study of Glare Due to Parking Lot Lighting on US-127 near M-36, Mason | 02/19/1974 | SPR-903-Report.pdf | ||
| RR-361 | Color Coding Study for Freeway Markings Median Delineation Phase | 02/01/1974 | RR-361-Report.pdf | ||
| RR-356 | 1972 Analysis of State Highway Accident Facts | 01/01/1974 | RR-356-Report.pdf | ||
| RR-346 | 1st Annual Report of Michigan's Overall Highway Safety Improvement Program: 1973-1974 | 01/01/1974 | RR-346-Report.pdf | ||
| SPR-897 | Legibility Distance of I-69 Reflector Button Legend Signs | G.M. Smith | 01/01/1974 | SPR-897-Report.pdf | |
| RR-354 | An Evaluation of the 1965-66, 1966-67 Tree Removal Programs - Supplement | 01/01/1974 | RR-354-Report.pdf | ||
| RR-355 | A Traffic Accident Analysis of High Accident Locations in Kalamazoo County | 01/01/1974 | RR-355-Report.pdf | ||
| RR-035 | 1972 Analysis of State Highway Accident Facts | 01/01/1974 | RR-035-Report.pdf | ||
| RR-302 | Evaluation of Two Safety Projects for Curve Superelevation and Drainage Correction | 01/01/1973 | RR-302-Report.pdf | ||
| RR-315 | Michigan Trunkline Accident Facts, an Evaluation of the States - 1971 Accident Experience | 01/01/1973 | RR-315-Report.pdf | ||
| RR-307 | A Traffic Accident Analysis of High Accident Locations in the City of Portage | 01/01/1973 | RR-307-Report.pdf | ||
| RR-294 | Three Experiments with Transverse Pavement Stripes and Rumble Bars | 10/01/1972 | RR-294-Report.pdf | ||
| RR-293 | Field Evaluation of A Flexible Traffic Guide Post | 10/01/1972 | RR-293-Report.pdf | ||
| RR-286 | A Traffic Accident Analysis of High Accident Locations in the City of Adrian | 06/01/1972 | RR-286-Report.pdf | ||
| RR-287 | Michigan Trunkline Accident Facts, an Evaluation of the States - 1970 Accident Experience | 06/01/1972 | RR-287-Report.pdf | ||
| RR-282 | A Traffic Accident Analysis of High Accident Locations in the City of Niles | 04/01/1972 | RR-282-Report.pdf | ||
| RR-280 | A Traffic Accident Analysis of High Accident Locations in the City of Escanaba | 03/01/1972 | RR-280-Report.pdf | ||
| RR-264 | Study of the Operational Aspects of One-Way and Two-Way Streets | 01/01/1972 | RR-264-Report.pdf | ||
| RR-276 | A Traffic Accident Analysis of High Accident Locations in the City of Three Rivers | 01/01/1972 | RR-276-Report.pdf | ||
| RR-266 | A Traffic Accident Analysis of High Accident Locations in the City of Battle Creek | 01/01/1972 | RR-266-Report.pdf | ||
| RR-275 | An Investigation of Weather Factor Effects on Traffic Accidents | 01/01/1972 | RR-275-Report.pdf | ||
| RR-260 | Truck Speed Study: Evaluation of Hill-Climbing Ability of Motor Trucks | 11/01/1971 | RR-260-Report.pdf | ||
| RR-259 | A Traffic Accident Analysis of High Accident Locations in the city of Hancock | 10/01/1971 | RR-259-Report.pdf | ||
| RR-253 | A Traffic Accident Analysis of High Accident Locations in Marquette County | 07/01/1971 | RR-253-Report.pdf | ||
| RR-249 | A Traffic Accident Analysis of High Accident Locations in the city of Ionia | 06/01/1971 | RR-249-Report.pdf | ||
| RR-248 | An Evaluation of the 1965-66, 1966-67 Tree Removal Programs | 06/01/1971 | RR-248-Report.pdf | ||
| RR-251 | Investigation into Using Air in the Permeability Testing of Granular Soils | 06/01/1971 | RR-251-Report.pdf | ||
| RR-244 | Michigan Highway Safety Program - Maintenance Standards and Construction Area Practices | 03/01/1971 | RR-244-Report.pdf | ||
| RR-240 | A Traffic Accident Analysis of High Accident Locations in Mason County | 02/01/1971 | RR-240-Report.pdf | ||
| RR-241 | A Traffic Accident Analysis of High Accident Locations in Montgomery County | 02/01/1971 | RR-241-Report.pdf | ||
| RR-242 | A Traffic Accident Analysis of High Accident Locations in St Joseph County | 02/01/1971 | RR-242-Report.pdf | ||
| RR-232 | A Traffic Accident Analysis of High Accident Locations in Benzie County | 01/01/1971 | RR-232-Report.pdf | ||
| RR-231 | Widening a Four Lane Roadway to Five Lanes and Providing a Center Lane for Left Turns | 01/01/1971 | RR-231-Report.pdf | ||
| RR-233 | A Traffic Accident Analysis of High Accident Locations in the City of Dowagiac | 01/01/1971 | RR-233-Report.pdf | ||
| RR-229 | A Traffic Accident Analysis of High Accident Locations in Osceola County | 12/01/1970 | RR-229-Report.pdf | ||
| RR-228 | A Traffic Accident Analysis of High Accident Locations in Lapeer County | 12/01/1970 | RR-228-Report.pdf | ||
| RR-220 | A Traffic Accident Analysis of High Accident Locations in Tuscola County | 06/01/1970 | RR-220-Report.pdf | ||
| SPR-741 | An Evaluation of "Effective and Dependable" Reflectorization for Registration Plates | 05/01/1970 | SPR-741-Report.pdf | ||
| RR-218 | Procedures Manual for The Determination and Establishment of No Passing Zones | 03/01/1970 | RR-218-Report.pdf | ||
| RR-216 | Development of a an Internally Illuminated School Speed Limit Sign | 03/01/1970 | RR-216-Report.pdf | ||
| SPR-695 | Evaluation of Experimental Signs | M.H. Janson | 03/01/1969 | SPR-695-Report.pdf | |
| RR-198 | Accident Analysis and Cost Justification - Left Side Pennant Sign US-12 | 03/01/1969 | RR-198-Report.pdf | ||
| RR-191 | A Review of the Michigan Criteria for Marking No Passing Zones: 1968 | 01/01/1969 | RR-191-Report.pdf | ||
| RR-190 | Evaluation of Low Profile Lights for Pavement Delineation | 01/01/1969 | RR-190-Report.pdf | ||
| RR-193 | Study of the Operational Aspects of One Way and Two Way Streets | 01/01/1969 | RR-193-Report.pdf | ||
| RR-184 | Evaluation of a Safety Project: Replacement of Bi-Directional Crossover with Pair of Directional Crossovers | 01/01/1969 | RR-184-Report.pdf | ||
| RR-182 | Evaluation of a Safety Project ? Widening of M-17 from Four to Five Lanes | 12/01/1968 | RR-182-Report.pdf | ||
| SPR-678 | Office Memorandum: Report on Experimental Raised Traffic Markers on I-75 in Detroit | A. J. Permoda | 07/01/1968 | SPR-678-Report.pdf | |
| SPR-652 | Investigation of Rigid Fuse Plates for Use on Breakaway Signs (Progress Report) | E. L. Marvin | 11/01/1967 | SPR-652-Report.pdf | |
| SPR-610 | Impact Tests of Breakaway Light Poles | J.E. Simonsen, F. DeRose | 10/01/1966 | Breakaway supports, crash tests, luminaires, street lighting, testing | SPR-610-Report.pdf |
| SPR-601 | Office Memorandum: Break-Away-Sign Supports | E.A. Finney | 09/19/1966 | SPR-601-Report.pdf | |
| SPR-581 | Sign Brightness in Relation to Legibility | T.M. Allen, G.M. Smith, M.H. Janson | 08/01/1966 | Brightness; Environment; Field tests; Illuminated traffic signs; Legibility; Lettering; Night; Traffic signs | SPR-581-Report.pdf |
| RR-152 | Emergency Highway Traffic Regulation | 06/01/1966 | RR-152-Report.pdf | ||
| RR-143 | Study of No Passing Zone Signing | 05/01/1965 | RR-143-Report.pdf | ||
| SPR-499 | Anti-Glare Fence Specifications | B. W. Pocock | 02/22/1965 | SPR-499-Report.pdf | |
| RR-121 | Motorist Services for Michigan Freeways | 07/01/1963 | RR-121-Report.pdf | ||
| RR-119 | An Evaluation of Concrete Median Barrier in Michigan | 06/01/1963 | RR-119-Report.pdf | ||
| RR-118 | A Review of the Criteria of Marking No Passing Zones | 05/01/1963 | RR-118-Report.pdf | ||
| SPR-336 | Flasher Brightness at Selected Intersections | M.H. Janson, G.M. Smith | 06/01/1960 | SPR-336-Report.pdf | |
| RR-145 | Anti-Glare Screen Study | 10/01/1956 | RR-145-Report.pdf | ||
| RR-039 | Special 24-hour Classified Speed Study M-78 Station 1-5 | 10/01/1955 | RR-039-Report.pdf | ||
| RR-036 | Psychological Reactions of Drivers as Related to Highway Safety | 09/01/1954 | RR-036-Report.pdf | ||
| RR-031 | Accident Experience in Relation to Road and Roadside Features | 03/01/1952 | RR-031-Report.pdf | ||
| RR-030 | A Kitten on a Telephone Pole - A Report by Michigan People to Michigan People on How to Check Mounting Highway Injuries and Deaths | 03/01/1952 | RR-030-Report.pdf | ||
| RR-027 | How Roadside Features Affect Traffic Accident Experience - 2nd Progress Report | 09/01/1951 | RR-027-Report.pdf | ||
| RR-017 | Modern Design Reduces Accidents | 05/01/1947 | RR-017-Report.pdf | ||
| RR-007 | No Passing Zones | 01/01/1943 | RR-007-Report.pdf | ||
| RR-006 | The Effectiveness of Highway Delineators on Accident Occurrence | 01/01/1941 | RR-006-Report.pdf |