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Roundabout Planning, Design, and Operations Manual
Roundabout Planning, Design, and Operations Manual December 2015 Alabama Department of Transportation ROUNDABOUT PLANNING, DESIGN, AND OPERATIONS MANUAL December 2015 Prepared by: The University Transportation Center for of Alabama Steven L. Jones, Ph.D. Abdulai Abdul Majeed Steering Committee Tim Barnett, P.E., ALDOT Office of Safety Operations Stuart Manson, P.E., ALDOT Office of Safety Operations Sonya Baker, ALDOT Office of Safety Operations Stacey Glass, P.E., ALDOT Maintenance Stan Biddick, ALDOT Design Bryan Fair, ALDOT Planning Steve Walker, P.E., ALDOT R.O.W. Vince Calametti, P.E., ALDOT 9th Division James Brown, P.E., ALDOT 2nd Division James Foster, P.E., Mobile County Clint Andrews, Federal Highway Administration Blair Perry, P.E., Gresham Smith & Partners Howard McCulloch, P.E., NE Roundabouts DISCLAIMER This manual provides guidelines and recommended practices for planning and designing roundabouts in the State of Alabama. This manual cannot address or anticipate all possible field conditions that will affect a roundabout design. It remains the ultimate responsibility of the design engineer to ensure that a design is appropriate for prevailing traffic and field conditions. TABLE OF CONTENTS 1. Introduction 1.1. Purpose ...................................................................................................... 1-5 1.2. Scope and Organization ............................................................................... 1-7 1.3. Limitations ................................................................................................... -
Continuous Flow Intersection, Parallel Flow Intersection, and Upstream Signalized Crossover
Comparison of Three Unconventional Arterial Intersection Designs: Continuous Flow Intersection, Parallel Flow Intersection, and Upstream Signalized Crossover Seonyeong Cheong, Saed Rahwanji, and Gang-Len Chang Abstract— This research is aimed to evaluate and world have adopted many conventional measures, including compare the operational performance of three signal planning and double left-turn lanes, for alleviating this unconventional intersections: Continuous Flow problem [1]. The using of these conventional measures are Intersection (CFI), Parallel Flow Intersection (PFI) and limited as the modifications of intersection design, such as Upstream Signalized Crossover (USC). For this purpose, widening interchanges and building bypasses, are expensive various experimental designs, including traffic conditions, and disruptive [1]. In contrast, the unconventional arterial geometric features and signal plans, were set and the intersection design (UAID) is one of the methods that can average delays were compared for movements of efficiently reduce the congestion with less cost as compare through-only traffic and left-turn-only traffic. From the with the conventional measures. General principles of results of analysis, all three unconventional intersections operation and management strategies of the UAID include: 1) outperformed conventional one and among the emphasis on through traffic movements along the arterial; 2) unconventional intersections, CFI outperformed the reduction in the number of signal phases (e.g. left-turn arrow others except for some traffic conditions. In the balanced phase); and 3) reduction in the number of intersection conflict traffic condition scenario, at the low traffic volume level, points [2]. These principles allow the UAID to reduce the the average delays of through traffic for PFI were smaller traffic congestion at the intersection and improve the traffic than that of CFI and very similar at the moderate traffic safety. -
Brick Streets Plan
BRICK STREETS PLAN City of Rock Island Community & Economic Development Department Planning & Redevelopment Division Rock Island Preservation Commission Adopted 1988 by Rock Island City Council Amended: January 23, 2012 August 22, 2011 March 28, 2005 April 10, 2000 May 12, 1997 September 14, 1992 Rock Solid. Rock Island. 1899 - The first brick pavement was laid in the Tri-Cities on the corner of Twentieth Street and Second Avenue, Rock Island. The first brick was placed by Mayor William McConochie. Civil Engineer for the project was H.G. Paddock. -- From Historical Souvenir of Moline and Vicinity, 1909 TABLE of CONTENTS Executive Summary ..................................................................................... 3 Prioritization List ........................................................................................... 5 Map of Brick Streets ..................................................................................... 6 Methodology ................................................................................................ 9 History of Brick Street Construction in Rock Island ...................................... 10 Condition of Brick Streets ............................................................................. 13 Utilities and Brick Streets ............................................................................. 17 Street Standards .......................................................................................... 18 Owner-Occupancy Along Brick Streets ....................................................... -
PASER Manual Asphalt Roads
Pavement Surface Evaluation and Rating PASER ManualAsphalt Roads RATING 10 RATING 7 RATING 4 RATING PASERAsphalt Roads 1 Contents Transportation Pavement Surface Evaluation and Rating (PASER) Manuals Asphalt PASER Manual, 2002, 28 pp. Introduction 2 Information Center Brick and Block PASER Manual, 2001, 8 pp. Asphalt pavement distress 3 Concrete PASER Manual, 2002, 28 pp. Publications Evaluation 4 Gravel PASER Manual, 2002, 20 pp. Surface defects 4 Sealcoat PASER Manual, 2000, 16 pp. Surface deformation 5 Unimproved Roads PASER Manual, 2001, 12 pp. Cracking 7 Drainage Manual Patches and potholes 12 Local Road Assessment and Improvement, 2000, 16 pp. Rating pavement surface condition 14 SAFER Manual Rating system 15 Safety Evaluation for Roadways, 1996, 40 pp. Rating 10 & 9 – Excellent 16 Flagger’s Handbook (pocket-sized guide), 1998, 22 pp. Rating 8 – Very Good 17 Work Zone Safety, Guidelines for Construction, Maintenance, Rating 7 – Good 18 and Utility Operations, (pocket-sized guide), 1999, 55 pp. Rating 6 – Good 19 Wisconsin Transportation Bulletins Rating 5 – Fair 20 #1 Understanding and Using Asphalt Rating 4 – Fair 21 #2 How Vehicle Loads Affect Pavement Performance Rating 3 – Poor 22 #3 LCC—Life Cycle Cost Analysis Rating 2 – Very Poor 23 #4 Road Drainage Rating 1 – Failed 25 #5 Gravel Roads Practical advice on rating roads 26 #6 Using Salt and Sand for Winter Road Maintenance #7 Signing for Local Roads #8 Using Weight Limits to Protect Local Roads #9 Pavement Markings #10 Seal Coating and Other Asphalt Surface Treatments #11 Compaction Improves Pavement Performance #12 Roadway Safety and Guardrail #13 Dust Control on Unpaved Roads #14 Mailbox Safety #15 Culverts-Proper Use and Installation This manual is intended to assist local officials in understanding and #16 Geotextiles in Road Construction/Maintenance and Erosion Control rating the surface condition of asphalt pavement. -
FHWA Bikeway Selection Guide
BIKEWAY SELECTION GUIDE FEBRUARY 2019 1. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED February 2019 Final Report 4. TITLE AND SUBTITLE 5a. FUNDING NUMBERS Bikeway Selection Guide NA 6. AUTHORS 5b. CONTRACT NUMBER Schultheiss, Bill; Goodman, Dan; Blackburn, Lauren; DTFH61-16-D-00005 Wood, Adam; Reed, Dan; Elbech, Mary 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION VHB, 940 Main Campus Drive, Suite 500 REPORT NUMBER Raleigh, NC 27606 NA Toole Design Group, 8484 Georgia Avenue, Suite 800 Silver Spring, MD 20910 Mobycon - North America, Durham, NC 9. SPONSORING/MONITORING AGENCY NAME(S) 10. SPONSORING/MONITORING AND ADDRESS(ES) AGENCY REPORT NUMBER Tamara Redmon FHWA-SA-18-077 Project Manager, Office of Safety Federal Highway Administration 1200 New Jersey Avenue SE Washington DC 20590 11. SUPPLEMENTARY NOTES 12a. DISTRIBUTION/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE This document is available to the public on the FHWA website at: NA https://safety.fhwa.dot.gov/ped_bike 13. ABSTRACT This document is a resource to help transportation practitioners consider and make informed decisions about trade- offs relating to the selection of bikeway types. This report highlights linkages between the bikeway selection process and the transportation planning process. This guide presents these factors and considerations in a practical process- oriented way. It draws on research where available and emphasizes engineering judgment, design flexibility, documentation, and experimentation. 14. SUBJECT TERMS 15. NUMBER OF PAGES Bike, bicycle, bikeway, multimodal, networks, 52 active transportation, low stress networks 16. PRICE CODE NA 17. SECURITY 18. SECURITY 19. SECURITY 20. -
Pavement Mgmt Plan Street Listing
Town of Ashburnham Pavement Management Data 1/7/2021 Key REMINDER Town Accepted - Inspected It's important to keep the following in mind when reviewing this plan. State Roads Each fiscal year is subject to changes for any or all of the following reasons. Town Accepted - Gravel • Budget increases or decreases Town Accepted - Scenic Roads • Not receiving applied for grant monies Private • Changes to material costs RSR = Road Surface Rating • Unexpected changes to the condition of a particular road TIP = MA Transportation Improvement Program • Subject to funding allocation (Capital Plan) TOWN ACCEPTED INSPECTED Street Name Street Segment From Street RSR Repair Method Est. Cost Func. Class Estimated Action ACADEMY STREET ACADEMY ST-01 CENTRAL ST 99.23 No Maintenance Required $0.00 Local Completed ACADEMY STREET ACADEMY ST-02 PLEASANT ST N 99.23 No Maintenance Required $0.00 Local Completed AMES AVENUE AMES AVE CENTRAL ST 11.13 Major Rehabilitation $30,394.54 Local Cul De Sac/Dead End ASHBY ROAD ASHBY RD-01 CHAPEL ST 87.73 Routine Maintenance $6,852.38 Major Collector ASHBY ROAD ASHBY RD-02 STOWELL RD 89.73 Routine Maintenance $8,518.91 Major Collector ASHBY ROAD ASHBY RD-03 HOLT RD 91.73 Routine Maintenance $6,049.28 Major Collector ASHBY ROAD ASHBY RD-04 OLD ASHBY RD 96.73 No Maintenance Required $0.00 Major Collector Completed ASHBY ROAD ASHBY RD-05 OLD STEELE RD 96.73 No Maintenance Required $0.00 Major Collector Completed ASHBY ROAD ASHBY RD-06 RINGE TPKE 96.73 No Maintenance Required $0.00 Major Collector Completed BIRCHWOOD TERRACE -
Maricopa County Department of Transportation MAJOR STREETS and ROUTES PLAN Policy Document and Street Classification Atlas
Maricopa County Department of Transportation MAJOR STREETS AND ROUTES PLAN Policy Document and Street Classification Atlas Adopted April 18, 2001 Revised September 2004 Revised June 2011 Preface to 2011 Revision This version of the Major Streets and Routes Plan (MSRP) revises the original plan and the 2004 revisions. Looking ahead to pending updates to the classification systems of towns and cities in Maricopa County, the original MSRP stipulated a periodic review and modification of the street functional classification portion of the plan. This revision incorporates the following changes: (1) as anticipated, many of the communities in the County have updated either their general or transportation plans in the time since the adoption of the first MSRP; (2) a new roadway classification, the Arizona Parkway, has been added to the Maricopa County street classification system and the expressway classification has been removed; and (3) a series of regional framework studies have been conducted by the Maricopa Association of Governments to establish comprehensive roadway networks in parts of the West Valley. Table of Contents 1. Introduction........................................................................................................................1 2. Functional Classification Categorization.............................................................................1 3. Geometric Design Standards..............................................................................................4 4. Street Classification Atlas..................................................................................................5 -
Planning and Design Guideline for Cycle Infrastructure
Planning and Design Guideline for Cycle Infrastructure Planning and Design Guideline for Cycle Infrastructure Cover Photo: Rajendra Ravi, Institute for Democracy & Sustainability. Acknowledgements This Planning and Design guideline has been produced as part of the Shakti Sustainable Energy Foundation (SSEF) sponsored project on Non-motorised Transport by the Transportation Research and Injury Prevention Programme at the Indian Institute of Technology, Delhi. The project team at TRIPP, IIT Delhi, has worked closely with researchers from Innovative Transport Solutions (iTrans) Pvt. Ltd. and SGArchitects during the course of this project. We are thankful to all our project partners for detailed discussions on planning and design issues involving non-motorised transport: The Manual for Cycling Inclusive Urban Infrastructure Design in the Indian Subcontinent’ (2009) supported by Interface for Cycling Embassy under Bicycle Partnership Program which was funded by Sustainable Urban Mobility in Asia. The second document is Public Transport Accessibility Toolkit (2012) and the third one is the Urban Road Safety Audit (URSA) Toolkit supported by Institute of Urban Transport (IUT) provided the necessary background information for this document. We are thankful to Prof. Madhav Badami, Tom Godefrooij, Prof. Talat Munshi, Rajinder Ravi, Pradeep Sachdeva, Prasanna Desai, Ranjit Gadgil, Parth Shah and Dr. Girish Agrawal for reviewing an earlier version of this document and providing valuable comments. We thank all our colleagues at the Transportation Research and Injury Prevention Programme for cooperation provided during the course of this study. Finally we would like to thank the transport team at Shakti Sustainable Energy Foundation (SSEF) for providing the necessary support required for the completion of this document. -
MDOT Access Management Guidebook
ReducingTrafficCongestion andImprovingTrafficSafety inMichiganCommunities: THE ACCESSMANAGEMENT GUIDEBOOK COMMUNITYA COMMUNITYB Cover graphics and ROW graphic by John Warbach, Planning & Zoning Center, Inc. Photos by Tom Doyle, Michigan Department of Transportation. Speed Differential graphic by Michigan Department of Transportation. Road Hierarchy graphic by Rossman Martin & Associates, Inc. Reducing Traffic Congestion and Improving Traffic Safety in Michigan Communities: THE ACCESS MANAGEMENT GUIDEBOOK October, 2001 Prepared by the Planning & Zoning Center, Inc. 715 N. Cedar Street Lansing, MI 48906-5206 517/886-0555 (tele), www.pzcenter.com Under contract to the Michigan Department of Transportation With the assistance of three Advisory Committees listed on the next page The opinions, findings and conclusions expressed in this publication are those of the authors and not necessarily those of the Michigan State Transportation Commission or the Michigan Department of Transportation or the Federal Highway Administration. Dedication This Guidebook is dedicated to the countless local elected officials, planning and zoning commissioners, zoning administrators, building inspectors, professional planners, and local, county and state road authority personnel who: • work tirelessly every day to make taxpayers investment in Michigan roads stretch as far as it can with the best possible result; and • who try to make land use decisions that build better communities without undermining the integrity of Michigan's road system. D:\word\access\title -
Road Surface Quality: What Road Users Want from Highways England November 2017 Road Surface Quality: What Road Users Want from Highways England
Road surface quality: what road users want from Highways England November 2017 Road surface quality: what road users want from Highways England Anthony Smith Jim O’Sullivan Chief Executive Chief Executive Transport Focus Highways England Foreword ransport Focus research in 2015 showed that not something separate. They prefer asphalt roads T surface quality was road users’ top priority for to concrete ones, partly because they are quieter improvement to England’s motorways and major to drive on. ‘A’ roads1, by some margin. But what wasn’t clear Highways England believes a connected was exactly which aspects of the surface users country is better for everyone. The company works wanted to be improved and why. hard to deliver the safest, smoothest, most Transport Focus and Highways England have reliable connections possible. In 2015/2016 therefore worked together to research just that. 1471 lane miles of resurfacing was carried out Our purpose being to ensure that the views of – 23 per cent higher than the original target. those using the roads shape decision-making in But Highways England is not complacent. this area. That’s why Transport Focus and Highways England The research shows that what road users want are both using this research to help inform the is not complicated. They want a surface without Government’s second Road Investment Strategy dips, bumps, potholes, undulations or deep ruts (RIS 2), covering 2020-25. Separately, Highways – in other words continuously smooth. They also England is considering the recommendations want clearer white lines and ‘cats eyes’, which Transport Focus has made in light of this users regard as part of the surface and research. -
Study on Mixed Traffic Flow Behavior on Arterial Road
Special Issue - 2018 International Journal of Engineering Research & Technology (IJERT) ISSN: 2278-0181 RTCEC - 2018 Conference Proceedings Study on Mixed Traffic Flow Behavior on Arterial Road Lilesh Gautama Jinendra Kumar Jainb a Research Scholar, Department of Civil Engineering, b Associate Professor, Department of Civil Engineering, MNIT Jaipur, Rajasthan, India MNIT Jaipur, Rajasthan, India Abstract- Arterials in metropolitan cities are expected to dynamics using macroscopic functions (such as a speed- provide flexibility to the high volume of traffic. A realistic density relationship). understanding of traffic flow behaviour for such essential urban roads is necessary for traffic operation planning and The relationships among traffic flow characteristics (flow management for ensuring the desired level of service. Metro (q), speed (v), and density (k)) are typically represented politan cities in India carry different types of vehicles with different static and dynamic characteristics with a majority of graphically and referred to as fundamental diagram. The two wheelers. In the present study, the traffic characterization fundamental diagram plays an effective role in traffic flow on a dynamic scale is carried out by considering two-wheeler theory and transportation engineering [3,4]. Among the and car as reference vehicles. Speed, flow, density relationships three pair-wise‟ relationships” (e.g., speed-density, flow- are developed. density, and speed-flow), the speed-density relationship appears to be fundamental. Some of the popular The present case study is an examination of the behaviour of macroscopic models are Green shield's Model, Greenberg’s mixed traffic flow speed and flow rate on an access controlled Model, Drake Model, Underwood Model, Pipe's generalized in six-lane divided Jaipur city in Rajasthan state of India. -
Chapter 3: Design an Interconnected Street System
Chapter 3: Design an Interconnected Street System [Figure 3.1 in margin near here] Street systems either maximize connectivity or frustrate it. North American neighborhoods built prior 1950 were rich in connectivity, as evidenced by the relatively high number of street intersections per square mile typically found there.1 Interconnected street systems provide more than one path to reach surrounding major streets. In most interconnected street networks two types of streets predominate: narrow residential streets and arterial streets. In this book, for reasons explained in chapter two, we call these arterial streets in interconnected networks “streetcar” arterials. On the other end of the spectrum are the post WWII suburban cul-de-sac systems where dead end streets predominate and offer only one path from home to surrounding suburban arterials. This cul-de-sac-dominated system can be characterized as dendritic or “treelike”, the opposite of the web of connections found in interconnected systems. Streets in this system all branch out from the main “trunk”, which in Canadian and U.S. cities is usually the freeway. Attached to the main trunk of the freeway are the major “branches”, which are the feeder suburban arterial streets or minor highways. These large branches then give access to the next category down the tree, the collector streets or the minor branches in the system. Collector streets then connect to the “twigs and branch tips” of the system, the residential streets, and dead end cul-de-sacs. The major advantages of the interconnected system is that it makes all trips as short as possible, allows pedestrians and bikes to flow through the system without inconvenience, and relieves congestion by providing many alternate routes to the same place.