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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 ................................................................................................... -
PAVEMENT MANAGEMENT STUDY Templeton, MA
PAVEMENT MANAGEMENT STUDY Templeton, MA Prepared by Stantec Date: September 2018 2 Stantec TABLE OF CONTENTS 1. INTRODUCTION 1 BACKGROUND 2 PAVEMENT MANAGEMENT CONCEPTS 3 STUDY APPROACH 5 2. METHODOLOGY 7 Pavement Management Software 8 The Pavement Condition Index (PCI) Defined 10 The Five Treatment Repair Bands 10 Priority Ranking and Future Projection 12 3. EXISTING CONDITIONS 15 Road Mileage and Current Pavement Condition Index (PCI) 16 Distribution of Pavement Conditions 21 Current Roadway Backlog 22 4. MODEL/PLANNING PROCESS 25 Budget Analysis 26 Scenario Findings 27 Zero Budget 28 Historical Budget (Worst-First) 29 Historical Budget (Pavement Management Strategy) 30 Equilibrium Funding Scenario 32 Progressive Funding Scenario 34 5. CONCLUSION 37 Recommended Plan of Action 38 Future Pavement Management 40 APPENDIX A. Templeton’s Public Roadway Backlog B. Repair Alternatives And Unit Costs C. Glossary D. Town-wide Pavement Conditions Map PAVEMENT MANAGEMENT STUDY Templeton, MA 3 TABLES 1. (PCI) Treatment Band Ranges 11 2. Zero Budget 28 3. Historical Budget (Worst First) 29 4. Historical Budget (Pavement Management Strategy) 31 5. Maintain PCI Funding Scenario 33 6. Progressive Funding Scenario 34 4 Stantec FIGURES 1. Pavement Deterioration Curve 4 2. PCI Distribution in Miles by Treatment Band 21 3. Dollar Backlog of Outstanding Repairs 22 4. Dollar Backlog Distribution vs. Dollar Budget Allocation 30 5. PCI Histogram of Network Conditions 32 6. Average PCI of Roadway Funding Scenarios 35 7. Dollar Backlog of Roadway Funding Scenarios 35 PAVEMENT MANAGEMENT STUDY Templeton, MA 5 SECTION NAME INTRODUCTION 1 BACKGROUND The Town of Templeton is located in Worcester County, Massachusetts which straddles Route 2 and comprises four main villages: Templeton Center, East Templeton, Baldwinville, and Otter River. -
Traffic Signing and Pavement Markings General Notes
TOWN OF QUEEN CREEK Development Services Department Traffic Engineering Program TRAFFIC SIGNING AND PAVEMENT 22358 S. Ellsworth Road Queen Creek, Arizona 85142 MARKINGS GENERAL NOTES Signing Plan General Notes 1. The Town Traffic Engineer shall be notified at 480-358-3132 at least five business days prior to beginning any signing work associated with these plans. 2. The Town Traffic Engineer may require the Contractor to adjust signing locations, off- sets and types of signs at the time of installation. 3. All signing materials and installation shall conform to Town requirements, the Arizona Department of Transportation Standard Drawings and Specifications, the Manual on Uniform Traffic Control Devices (latest ADOT approved edition) and direction from the Town Traffic Engineer at time of installation. 4. The Contractor shall coordinate with the Town Traffic Engineering Division prior to ordering any materials to obtain the latest signing requirements and specifications. 5. The Contractor shall notify the Traffic Engineering Division at 480-358-3132 upon completion of all signing work to schedule a final inspection. The Contractor shall supply all required warranty documents to the Town Traffic Engineering Division prior to final job acceptance. 6. All existing signs temporarily removed by the contractor shall be salvaged for reinstallation by the Contractor. All signs permanently removed by the Contractor shall be salvaged and returned to the Town. The Contractor shall be solely responsible for maintaining each sign that is removed, ensuring that the signs integrity is maintained. In the event the sign is damaged, the Contractor shall be responsible for its replacement. 7. All signs and sign posts shall be installed per ADOT Standard Drawing S-3. -
Pavements and Surface Materials
N O N P O I N T E D U C A T I O N F O R M U N I C I P A L O F F I C I A L S TECHNICAL PAPER NUMBER 8 Pavements and Surface Materials By Jim Gibbons, UConn Extension Land Use Educator, 1999 Introduction Traffic Class Type of Road Pavements are composite materials that bear the weight of 1 Parking Lots, Driveways, Rural pedestrian and vehicular loads. Pavement thickness, width and Roads type should vary based on the intended function of the paved area. 2 Residential Streets 3 Collector Roads Pavement Thickness 4 Arterial roads 5 Freeways, Expressways, Interstates Pavement thickness is determined by four factors: environment, traffic, base characteristics and the pavement material used. Based on the above classes, pavement thickness ranges from 3" for a Class 1 parking lot, to 10" or more for Class 5 freeways. Environmental factors such as moisture and temperature significantly affect pavement. For example, as soil moisture Sub grade strength has the greatest effect in determining increases the load bearing capacity of the soil decreases and the pavement thickness. As a general rule, weaker sub grades require soil can heave and swell. Temperature also effects the load thicker asphalt layers to adequately bear different loads associated bearing capacity of pavements. When the moisture in pavement with different uses. The bearing capacity and permeability of the freezes and thaws, it creates stress leading to pavement heaving. sub grade influences total pavement thickness. There are actually The detrimental effects of moisture can be reduced or eliminated two or three separate layers or courses below the paved wearing by: keeping it from entering the pavement base, removing it before surface including: the sub grade, sub base and base. -
American Title a Sociation ~ ~
OFFICIAL PUBLICATION AMERICAN TITLE A SOCIATION ~ ~ VOUJME XXXVI JUNE, 1957 NUMBER 6 TITLE NEWS Official Publication of THE AMERICAN TITLE ASSOCIATION 3608 Guardian Building-Detroit 26, Michigan Volume XXXVI June, 1957 Number 6 Table of Contents Introduction-The Federal Highway Program ......... ... ................ .. .................... 2 J. E. Sheridan Highway Laws Relating to Controlled Access Roads ..... .. ....... ........... 6 Norman A. Erbe Title Companies and the Expanded Right of Way Problems ...... ............. .. 39 , Daniel W. Rosencrans Arthur A. Anderson Samuel J. Some William A . Thuma INTRODUCTION The Federal Highway Program J. E. SHERIDAN We are extremely grateful to Nor veloped its planning sufficiently to man A. Erbe, Attorney General of the show to the satisfaction of the dis State of Iowa, for permission to re trict engineer the effect of the pro print his splendid brief embracing posed construction upon adjace.nt the highway laws of various states property, the treatment of access con relating to the control in access roads. trol in the area of Federal acquisi Mr. Erbe originally presented this m tion, and that appropriate arrange narrative form before the convention ments have been made for mainte of the Iowa Title Association in May nance and supervision over the land of this year. As is readily ascertain to be acquired and held in the name able, this is the result of a compre of the United States pending transfer hensive study of various laws touch· of title and jurisdiction to the State ing on the incidents of highway regu or the proper subdivision thereof." lations. Additionally, we are privi It is suggested that our members leged to carry the panel discussion bring this quoted portion to the at of the American Right of Way Asso tention of officers of the Highway ciation Convention held in Chicago, Department and the office of its legal May 16 and 17, dealing with "Title division, plus the Office of the Attor Companies and the Expanded Right ney General within the members' ju of Way Problems". -
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 ....................................................... -
Access Management Manual, September 5, 2019 TABLE of CONTENTS
AccessAccess ManagementManagement ManualManual T E X A S Prepared by the City of Irving Public Works/Traffic and Transportation Department Adopted September 5, 2019 Access Management Manual, September 5, 2019 TABLE OF CONTENTS Section 1 Introduction Page 1.0 Purpose 1 1.1 Scope 1 1.2 Definitions 3 1.3 Authority 10 Section 2 Principles of Access Management 2.1 Relationship between Access and Mobility 11 2.2 Integration of Land Use and Transportation 11 2.3 Relationship between Access and Roadway Efficiency 12 2.4 Relationship between Access and Traffic Safety 12 Section 3 Access Management Programs and Policies 3.1 Identifying Functional Hierarchy of Roadways 14 3.1.1 Sub-Classifications of Roadways 14 3.1.1.1 Revising the “Master Thoroughfare Plan” 15 3.1.2 Comprehensive Plan 15 3.1.3 Discretionary Treatment by the Director 15 3.2 Land Use 15 3.3 Unified Access Planning Policy 16 3.4 Granting Access 16 3.4.1 General Mutual Access 17 3.4.2 Expiration of Access Permission 17 3.4.3 “Grandfathered” Access and Non-Conforming Access 17 3.4.4 Illegal Access 19 3.4.4.1 Stealth Connection 19 3.4.5 Temporary Access 19 3.4.6 Emergency Access 19 3.4.7 Abandoned Access 20 3.4.8 Field Access 20 3.4.9 Provision for Special Case Access 20 3.4.10 Appeals, Variances and Administrative Remedies 20 3.5 Parking and Access Policy 20 3.6 Access vs Accessibility 21 3.7 Precedence of Access Rights Policy 21 3.8 Right to Access A Specific Roadway 22 3.9 Traffic Impact Analyses (TIA’s) 22 3.9.1 Level of Service (LOS) 22 3.9.2 Traffic Impact Analysis (TIA) Requirements -
Town Standards Index (Select to View) • Collector Street Cross Section
Town Standards Index (select to view) • Collector Street Cross Section - Standard #3.00 • Collector Street Cross Section w/ Bike Lanes - Standard #3.01 • Local Street Cross Section - Standard #3.02 • Local Street Cross Section (No Curb) - Standard #3.03 • Industrial Street Cross Section - Standard #3.04 • 4-Lane Divided Street Cross Section - Standard #3.05 • Alley Cross Section - Standard #3.06 • Greenway Asphalt Path Cross Section - Standard #3.07 • Utility Trench Pavement Repair - Standard #3.08 • Typical Pavement Repair - Standard #3.09 • Standard Driveway Turnout - Standard #3.12 • Standard Curb & Gutter - Standard #3.13 • Median Curb - Standard #3.14 • Rolled Curb - Standard #3.15 • Residential Cul-de-sac - Standard #3.16 • Barricade for Dead End Streets - Standard #3.17 • Standard Concrete Drop Inlet - Standard #4.10 • Standard Brick Drop Inlet - Standard #4.11 • Standard Drop Inlet Grates - Standard #4.12 • Standard Concrete Catch Basin - Standard #4.13A • Standard Concrete Catch Basin - Standard #4.13B • Standard Brick Catch Basin - Standard #4.14A • Standard Brick Catch Basin - Standard #4.14B • HDPE Pipe - Standard #4.16 • Trench Installation for HDPE - Standard #4.16A • Polypropylene Pipe - Standard #4.17 • Trench Installation for Polypropylene - Standard #4.17A • Dissimilar Pipe Connections to RCP - Standard #4.18 • Curb Ramps - Standard #5.00 • Curb Ramps - New Development - Standard #5.01 • Curb Ramps - New Development - Standard #5.02 • Curb Ramps - New Development - Standard #5.03 • Curb Ramps - Retrofit - Standard #5.04 -
Boulevards and Parkways Seattle Open Space 2100 Boulevards + Parkways Diego Velasco
Boulevards and Parkways Seattle Open Space 2100 Boulevards + Parkways Diego Velasco Ocean Parkway, Brooklyn in 1890 - Jacobs, Macdonald, Rofe, The Boulevard Book, 2002 Photo Jacobs, Macdonald, Rofe, The Boulevard Book, 2002 A multiway boulevard is a “ mixed-use public way that is by its very nature complex” Alan Jacobs, 2002 A boulevard or parkway is a wide urban street with tree-lined sidewalks and often multiple lanes of both fast and slow moving traffic. Boulevards are usually pleasant and grand promenades, flanked by rich, monumental architecture and supporting a variety of street uses. They are often “monumental links between important destina- tions.” 1 More importantly, boulevards can be open space systems that serve multiple functions at once: movement of traffic, provision of green space in the city, relief of congestion in overcrowded areas, accommodation of pedestrians and bicycles, and the nurturing of vital street life and activity in the city. Boulevards date back to the 16th century, when medieval towns abandoned their fortified walls and converted them to tree-lined walkways for public recreation. Cities like Amsterdam and Strasbourg were among the first to develop obsolete ramparts into pleasure promenades. In 1670, Louis XIV abandoned the walls of Paris and replaced these with promenades that served as the parade grounds of aristocrats and the well-to-do. These were also known as cours or allees, such as the Cour de la Reine, which extended alongside the palatial gardens of the Tuileries.1 In the mid-19th to early-20th century, boulevards came to be associated with large- scale planning efforts, such as those of Napoleon III and Baron Haussmann in Paris or City Beautiful movements in the United States. -
Copy of Alley List 2018 (Final)Test.Xlsx
Houston Alleys Accepted By the City of houston for Maintenance Block No. (of Parallel Streets) Parallel To Parallel To Beginning End Length Key Map Date Accepted* Hammersmith (13) 7500 Del Monte Dr. Chevy Chase Dr. Alley Amberly Ct. 600 490V Jun‐05 7600 Del Monte Dr. Chevy Chase Dr. Amberly Ct. Fulham Ct. 600 490V Jun‐05 7500 Chevy Chase Amberly Ct. Del Monte Dr. Chevy Chase Dr. 450 490V Jun‐05 7500 Chevy Chase Amberly Ct. Olympia Dr. Chevy Chase Dr. 450 490V Jun‐05 7500 Olympia Dr. Chevy Chase Dr. S. Voss Rd. Amberly Ct. 600 490V Jun‐05 7600 Olympia Dr. Chevy Chase Dr. Amberly Ct. Fulham Ct. 600 490V Jun‐05 2100 Fulham Ct. Amberly Ct. Olympia Dr. Del Monte Dr. 765 490V Jun‐05 N/A Fulham Ct. S. Voss Rd. Olympia Dr. Alley 110 490V Jun‐05 N/A Fulham Ct. S. Voss Rd. Del Monte Dr. Alley 110 490V Jun‐05 7500 Amberly Ct. S. Voss Rd. Del Monte Dr. Chevy Chase Dr. 450 490V Jun‐05 7500 Amberly Ct. S. Voss Rd. Olympia Dr. Chevy Chase Dr. 450 490V Jun‐05 N/A Amberly Ct. S. Voss Rd. Olympia Dr. Alley 110 490V Jun‐05 N/A Amberly Ct. S. Voss Rd. Del Monte Dr. Alley 110 490V Jun‐05 Total: 5405 ft, 1.02 Miles Houston Heights (3) 300 W 19th W 20th Rutland Ashland 624 452V N/A 300 W 20th W 21th Rutland Ashland 639 452V N/A 600 W 20th W 21th Lawrence N Shepherd 610 452V N/A Total: 1873 ft, 0.35 Miles Villa del Parque (2) N/A Carla Normeadow Benbrook Lesue Ann 786 413Y Jun‐05 N/A Stabler Carla Rittenhouse Benbrook 954 413Y Jun‐05 Total: 1740 ft, 0.33 Miles Willowick Place (2) 3000 Essex Terrace Westgrove Weslayan Weslayan 1428 492S Jul‐73 2700 Essex Green Weslayan Essex Terrace Essex Green 293 492S Jul‐73 Houston Alleys Accepted By the City of houston for Maintenance Block No. -
Subdivision Street Standards Manual
TOWN OF MARANA Subdivision Street Standards Manual May 2013 TABLE OF CONTENTS CHAPTER & SECTION 1.0 INTRODUCTION AND PURPOSE………………………………………………. 1 1.1 Introduction………………………………………………………………… 1 1.2 Purpose……………………………………………………………………... 1 1.3 Applicability……………………………………………………………….. 2 2.0 FUNCTIONAL CLASSIFICATION AND REGULATIONS…………………….. 2 2.1 Functional Classification………………………………………….………... 2 2.2 Incorporated Regulations Adopted by Reference…………………………... 3 3.0 TRAFFIC STUDIES………………………………………………………………. 3 4.0 STREET LAYOUT AND GEOMETRIC DESIGN………………………………... 4 4.1 Street Layout………………………………………………………………… 4 4.2 Cul-de-sacs………………………………………………………………….. 5 4.3 Design Speed………………………………………………………………... 6 4.4 Design Vehicle…………………………………………………….………… 6 4.5 Horizontal Alignment……………………………………………………….. 7 4.6 Vertical Alignment………………………………………………………….. 7 4.7 Intersection Alignment…………………………………………….………… 8 4.8 Intersection Sight Distance…………………………………………………. 9 4.9 Residential and Commercial Drive Entrances………………………………. 10 4.10 Roadway Superelevation…………………………………………………….. 11 4.11 Roadway Drainage Crossings……………………………………………….. 11 4.12 Mountainous Terrain………………………………………………………… 11 4.13 Environmentally Sensitive Roadways………………………………………. 12 4.14 Alternative Access…………………………………………………………… 12 5.0 RIGHT OF WAY……………………………………………………………………. 13 6.0 ELEMENTS IN THE CROSS SECTION…………………………………………... 14 6.1 Travel Lanes……………………………………………………….………… 14 6.2 Curbing……………………………………………………………………… 14 6.3 Sidewalks………………………………………………………….………… 15 6.4 Shoulders………………………………………………………….………… 16 6.5 Roadside -
What Are the Advantages of Roundabouts?
What is a roundabout? A roundabout is an intersection where traffic travels around a Circulatory central island in a counter- Truck Apron Roadway clockwise direction. Vehicles entering or exiting the roundabout must yield to vehicles, bicyclists, and pedestrians. Figure 1 presents the elements of a roundabout. Yield Line Splitter Island Figure 1: Elements of a Roundabout What are the advantages of roundabouts? • Less Traffic Conflict: Figure 2 compares the conflict points between a conventional intersection and a modern roundabout. The lower number of conflict points translates to less potential for accidents. • Greater safety(1): Primarily achieved by slower speeds and elimination of left turns. Design elements of the roundabouts cause drivers to reduce their speeds. • Efficient traffic flow: Up to 50% increase in traffic capacity • Reduced Pollution and fuel usage: Less stops, shorter queues and no left turn storage. • Money saved: No signal equipment to install or maintain, plus savings in electricity use. • Community benefits: Traffic calming and enhanced aesthetics by landscaping. (1) Statistics published by the U.S. Dept. of transportation, Federal Highway Administration shows roundabouts to have the following advantages over conventional intersections: • 90% reduction in fatalities • 76% reduction in injuries • 35% reduction in pedestrian accidents. Signalized Intersection Roundabout Figure 2: Conflict Point Comparison How to Use a Roundabout Driving a car • Slow down as you approach the intersection. • Yield to pedestrians and bicyclists crossing the roadway. • Watch for signs and pavement markings. • Enter the roundabout if gap in traffic is sufficient. • Drive in a counter-clockwise direction around the roundabout until you reach your exit. Do not stop or pass other vehicles.