Interstate 580 Express Lanes 20 Year Expenditure Plan
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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 ................................................................................................... -
Road to Resilience Delivering a Robust Local Roads Network
Road to resilience Delivering a robust local roads network December 2018 Road to resilience | Delivering a robust local roads network 3 Foreword Local roads are often, rightly, described as the lifeblood of local Balfour Beatty has a proud history of working on roads of all sizes, economies across the country, keeping transport flowing around across the country. The local authorities we work with are doing towns and cities and supporting local supply chains. their utmost to ensure the resilience of their local roads and to repair the damage caused by the harsh winter. Indeed, according Unfortunately, they also bear the brunt of congestion, which can to the Local Government Association (LGA), local authorities fix a have a significant impact on the productivity – or otherwise – of pothole every 21 seconds1. Where our local authority partners have those local economies, and on air quality, due to the needless secured additional capital investment for their roads, we have emissions from vehicles waiting in queues. The difference seen a reduction on revenue expenditure, and public satisfaction between the condition of local roads and the Strategic Roads improving. The money announced at the Autumn Budget will Network (SRN) is now significant in some areas, and is noticeable therefore be extremely welcome. to motorists. It will of course be important to ensure that this much-needed The backlog of maintenance on these roads, due to years of extra money is made to go as far as it can – that advances in underinvestment, is made worse by pothole problems which technology are capitalised on and that local authorities and the arise after harsh winters, further squeezing already constrained industry work together as closely as possible to drive efficiencies. -
A Study of Occurrence of Potholes and Washboards on Soil-Aggregate Roads EUGENE Y
A Study of Occurrence of Potholes and Washboards on Soil-Aggregate Roads EUGENE Y. HUANG, Associate Professor of Civil Engineering, University of Illinois This report presents the results of a study aimed at determining some of the circumstances associated with the occurrence of potholes and washboards on soil-aggregate roads. The study consisted of a statistical analysis of the qualitative data obtained from a road condition survey involving road surfaces of the coarse-graded aggregate type composed of mineral aggregate such as gravel or crushed stone and some binder material. Results of the study indicate that the occurrence of potholes and washboards was definitely associated with the volume of traffic, the type of surface material, and the drainage condition of the road surface. Although the findings are admittedly limited to the types and conditions of the roads studied, it is hoped that the data may be of value in further understanding the formation of potholes and washboards. • THE OCCURRENCE of potholes and washboards has long been a serious problem in soil-aggregate surfaces. These formations, however, have not been fully explained. Potholes on road surfaces are irregularly occurring, well-defined holes consisting of fairly deep cavities up to about 5 in. (Fig. 1). Washboards are transverse or nearly transverse waves on road surfaces, generally about 1 to 1/4 in. in amplitude andspaced about 2 or 3 ft apart (Fig. 2), regardless of the nature of material in which they occur. (Although typical formations of potholes and washboards are readily distinguishable, there are, however, numerous possibilities of transitional forms between these two typical forms.) Both potholes and washboards are conducive to surface impact and vibration, which contribute in a great measure to the rapid deterioration of the road surface as well as the vehicle itself. -
Cycling Infrastructure Policy June 2017
Cycling Infrastructure Policy June 2017 Department of Transport and Main Roads Creative Commons information © State of Queensland (Department of Transport and Main Roads) 2015 http://creativecommons.org.licences/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 Licence. You are free to copy, communicate and adapt the work, as long as you attribute the authors. The Queensland Government supports and encourages the dissemination and exchange of information. However, copyright protects this publication. The State of Queensland has no objection to this material being reproduced, made available online or electronically but only if its recognised as the owner of the copyright and this material remains unaltered. The Queensland Government is committed to providing accessible services to Queenslanders of all cultural and linguistic backgrounds. If you have difficulty understanding this publication and need a translator, please call the Translating and Interpreting Service (TIS National) on 13 14 50 and ask them to telephone the Queensland Department of Transport and Main Roads on 13 74 68. Disclaimer: While every care has been taken in preparing this publication, the State of Queensland accepts no responsibility for decisions or actions taken as a result of any data, information, statement or advice, expressed or implied, contained within. To the best of our knowledge, the content was correct at the time of publishing. Cycling Infrastructure Policy June 2017 - i - Document control options Departmental approvals Refer to the -
Viscosity Resin for Reinforcing Pothole Patching Materials
NIST Civil Infrastructure Showcase 3-14-14 Gaithersburg, MD Development of High-Toughness, Low- Viscosity Resin for Reinforcing Pothole Patching Materials BruinPatch, Inc. A UCLA Startup for Improving National Infrastructure Larry Carlson UCLA Institute for Technology Advancement President, Bruinpatch, Inc. [email protected] (818) 970-5532 Engineering Institute for Technology Advancement Product Product: A long lasting pothole repair method that utilizes a low viscosity resin, a patented catalyst and UCLA’s patented approach Integrated Dual Phase Approach Porous asphalt with Top Phase: infiltrated DCPD layer • Moisture resistant • High toughness Interface • Durable, rutting resistant Densely compacted Bottom Phase: asphalt layer • Compacted standard materials • Low Cost Cross-section DCPD Resin Curing Schematic illustration of aggregate-asphalt mix Ring-opening Metathesis Polymerization infiltrated with DCPD and formed a hardened continuous network within • Capable of infiltrating into the voids, and Reduction of continuous and interconnected voids • Reinforce the continuous phase of the aggregate composites Curing Profile cold mix 160 'C Interface of cold mix and D2 mix 120 D2 160 'C 1.5 min 100 4 min 80 60 Surface of cold mix Temperature 'C 40 Resin added 20 0 2 4 6 8 10 12 Time Minute Curing profiles were recorded by measuring temperature profile on the surface and at the interface of the porous mix and dense mix. Catalyst Development 180 160 180 C831 0 TPP 140 C831 160 -20'C to RT C727 0.03% TPP -11'C -3'C 140 120 0 TPP -5'C 120 -
Cornell Local Roads Program Town of Ticonderoga, NY 2016
Cornell Local Roads Program Town of Ticonderoga, NY 2016 Colvin Chapman and Samuel Shelmidine Ticonderoga Highway Department 138 Racetrack Rd. Ticonderoga, NY 12883 Table of Contents I. Introduction………………………………………...………………....3 A. Background of Roads………………………………………....3 B. Fundamentals of good roads………………………………….6 II. CAMPRS Process …………………………………………………..9 A. CAMPRS Training…………………………………..……....9 B. Road Surveying ……………………………………………...9 C. Pavement Distresses………………………………………….10 D. Roads by Rank……………………………………………….15 E. Assign Repairs……………………………………………….16 III. Assessment Results…………………………………………………..18 IV. Recommendation…………………………………………………......19 V. Sources……………………………………………………………….19 Appendix A: Ticonderoga Local Roads Assessment Appendix B: Ticonderoga Map of Local Roads. Appendix C: CAMPRS Asphalt Pavement Condition Survey Appendix D: CAMPRS Unpaved Condition Survey 2 I. Introduction The Cornell Local Roads Program Center provides training, technical assistance, and information to municipal officials and employees responsible for the maintenance, construction, and management of local highways and bridges in New York State. This educational service has been widely used throughout New York State by many municipalities who wish to run their highway departments more effectively and efficiently. Part of the Cornell Local Roads Program (CLRP) is a cost analysis tool developed by Civil Engineers from Cornell University. The purpose of this tool is to generate a road database for prioritizing and recommending various repairs objectively. The basis of the program is to collect road condition data and catalog a detailed list of information through software known as the Cornell Asset Management Program Roads & Streets (CAMPRS). CAMPRS functions chiefly by “Keeping good roads good” and consistently improving the conditions of subpar roads within the constraints of a limited budget. CAMPRS outputs a prioritized list of repairs in order to efficiently raise the condition of all roads to an acceptable level. -
||||IHHHHHHHHHHH USOO512772A United States Patent (19) 11) Patent Number: 5,127,172 Lund Et Al
||||IHHHHHHHHHHH USOO512772A United States Patent (19) 11) Patent Number: 5,127,172 Lund et al. 45 Date of Patent: Jul. 7, 1992 4,779,363 10/1988 Boutralis et al. .............. 37/118 RX (54) GUARD RAIL CLEANOUT DEVICE 4,843,743 7/1989. Durieux ................................ 37/103 76) Inventors: Kenneth Lund, 21429 Lofton Ave. 4,945,662 8/1990 Kreye ...... ... 37/17.5 X N.; Thomas W. Boesel, 16360-209th 4,946,392 6/1990 Kitchin .......................... 37/117.5 X St., N., both of Scandia, Minn. 55073 OTHER PUBLICATIONS 21) Appl. No.: 766,980 “Men See Money in Sand, Clean Up," Chris J. Bohrer, 22 Filed: Sep. 27, 1991 Washington County (Minn.) Washline, p. 2, Jun-Jul. 1990. Related U.S. Application Data "Innovative employees Win Awards," Kay Bruchu, 63 Continuation of Ser. No. 575,373, Aug. 28, 1991, aban Washington County (Minn.) Washline, p. 1, May-Jun. doned. 1991. 51) Int. Cl. ................................................ E02F 3/76 Primary Examiner-Randolph A. Reese 52 U.S. C. ................................ 37/117.5; 37/141 R; Assistant Examiner-J. Russell McBee 37/DIG. 12 Attorney, Agent, or Firm-Jacobson & Johnson 58) Field of Search .............. 37/117.5, 118 R, 141 R, 37/103, DIG.3, DIG.12; 172/445. 1, 817 (57) ABSTRACT A device including a set of blades for removing dirt . (56) References Cited from underneath guard rails, with blades extending U.S. PATENT DOCUMENTS outward from the guard rail clean-out device in a canti 1,735,297 11/1929 Pardue . levered fashion to allow a user to extend the blades 2,186,081 1/1940 Slavin . -
Bridging the Gaps in Bicycling Networks an Advocate’S Guide to Getting Bikes on Bridges
Bridging the Gaps in Bicycling Networks An advocate’s guide to getting bikes on bridges Bridges are important. Whether over rivers, lakes, or built obstacles such as freeways, bridges are critical to bicyclists. Inaccessible bridges can force substantial detours or sever routes entirely, effectively discouraging or eliminating bike travel. As veteran Seattle bike and pedestrian planner Peter Lagerwey says: "If you can't get across the bridges, nothing else matters." In addition to their practical worth, bridges are also often high‐profile, large‐scale projects; the inclusion of bicycle facilities is an important symbolic recognition of the role of bicycling and walking in transportation networks. Bicyclists can expect to see more and more bridges under construction in the coming months and years, creating opportunities (and risks) for bicyclists. According to the Government Accountability Office, one quarter of the 602,977 bridges on the country’s roadways is either structurally deficient and in need of repair, or functionally obsolete and is not adequate for today’s traffic needs. Seventy‐one thousand of them are considered structurally deficient, with a major defect in structure or deck. In some states, more than 20 percent of the bridges fit this description. A 2010 report by the U.S. PIRG Education Fund observes that, “Generally, engineers build bridges in the United States for a useful life of 50 years. The average age of America’s bridges is now 43 years, with 185,000 over 50 years old. By 2030, that number could double.” These overdue bridge repair or replacement projects mean more chances to open up bridges to biking and walking than ever before. -
Ottawa County Road Commission Standards and Specifications for PLAT CONDOMINIUM and PUBLIC ROAD DEVELOPMENT BOARD of COUNTY ROAD
Ottawa County Road Commission Standards and Specifications For PLAT CONDOMINIUM And PUBLIC ROAD DEVELOPMENT BOARD OF COUNTY ROAD COMMISSIONERS COUNTY OF OTTAWA 1 Regulations pertain to the subdivision of lands located outside the corporate limits of any city or village in the County of Ottawa and to the lands within incorporated areas when such lands are adjacent to public highways under the jurisdiction of the Board of County Road Commissioners of the County of Ottawa. The following Standards and Specifications were adopted by the Board of County Road Commissioners on January 12, 2006 2 CONTENTS I. PURPOSE 1 II. DEFINITIONS 1 lll. DEVELOPMENT REQUIREMENTS 2 A. Preliminary Plans 2 1. Preparation of Plans 2 2. Road Names 2 3. Submission of Preliminary Plans 2 4. Approval of Preliminary Plans 3 B. Right-Of-Way Requirements 3 1. General Requirements 3 2. Width Requirements 3 C. Conformity 3 IV. CONSTRUCTION PLANS AND IMPROVEMENTS 5 A. Road and Drainage Plans 5 B. Drainage Easements 5 C. Drainage Structures 5 1. Crossroad Culverts and Bridges 5 2. Driveway Culverts 5 3. Storm Sewer 6 4. Under drains 6 5. Storm Sewer Accessibility 6 D. Utilities 7 E. Guard Posts, Guard Rail and Barricades 7 F. Clearing, Removal of Trees, Brush, Roots and Topsoil 7 G. Road Improvements 7 1. Typical Road Sections 7 2. Turnaround Section 7 3. Boulevard Section 9 4. Grades and Sight Distance 10 5. Traffic Impact Study 10 6. Intersecting Roadway Improvements 10 7. Existing Road Cleanup 10 8. Material Requirements and Specifications 11 9. Concrete Curb & Gutter 11 10. -
Johnson Survey Comments
5. Please share any other comments or concerns you have about the johnson Road Full Improvements Project. Response I favor the three lane option with one very la rge drainage pipe (along with other utilities) beneath 1. the center (turn) lane. Seems to me that such an arrangement might facilitate maintenance without ~ Respons~ the necessity of closing down the whole road. I don't understand how pedestrians are able too safely cross the roundabout. I don't see it planned here and I watched the presentation and didn't hear it addressed. Living east of keller Smithfield we had 4 stops signs to stop traffic to allow pedestrians to pass. how does this work with a 2. roundabout? Given children are to walk to high school within the 2 m ile limits they are going to [VieW Response] have to cross at johnson across Keller Smithfield to get to the high school. Were studies done to evaluate pedestrian and bicycle traffic across the round about? The round about near Walmart Is quite frightening as there are folks who don't know how a roundabout wor ks I can't see them slowing down for bike or walkers. 3. The best option is to keep continuity on johnson Rd from 377 to Keller Smithfield Rd. Three lanes ~Response] with closed drainage is safer & w ill a llow traffic to flow most efficiently. Do it right the first time. Our property currently sits at 1650 johnson Road. Big Bear Creek runs directly t hrough the middle of our property. Our concern after attending the meeting is that if all water is being moved to Big Bear Creek. -
Improving Value of Travel Time Savings Estimation for More Effective Transportation Project Evaluation
Improving Value of Travel Time Savings Estimation for More Effective Transportation Project Evaluation BDK85 977-21 Final Report December 2011 i Improving Value of Travel Time Savings Estimation for More Effective Transportation Project Evaluation BDK85 977-21 Final Report Prepared for: Florida Department of Transportation Research Center 605 Suwannee Street, MS 30 Tallahassee, FL 32399-0450 Project Manager: Amy Datz Prepared by: Victoria A. Perk Joseph S. DeSalvo, Ph.D. Tara A. Rodrigues Nina M. Verzosa Steven C. Bovino Center for Urban Transportation Research University of South Florida 4202 E. Fowler Avenue, CUT-100 Tampa, FL 33620-5375 December 2011 i DRAFT October 2011 ii DISCLAIMER The opinions, findings, and conclusions expressed in this publication are those of the authors and not necessarily those of the State of Florida Department of Transportation. iii iv Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. 4. Title and Subtitle 5. Report Date Improving Value of Travel Time Savings Estimation for More December 2011 Effective Transportation Project Evaluation 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Victoria A. Perk, Joseph S. DeSalvo, Tara A. Rodrigues, Nina M. Verzosa, Steven C. Bovino 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Center for Urban Transportation Research University of South Florida 4202 E. Fowler Avenue, CUT-100 11. Contract or Grant No. Tampa, FL 33620 BDK85 977-21 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Florida Department of Transportation Final Report Research Center March 2010 – December 2011 605 Suwannee Street, MS 30 14. -
Cycling Infrastructure Version 1
Cycling VERSION 1 infrastructure Cycling infrastructure In this chapter 01 Introduction 5 Kerbside activity 33 07 02 Choosing the right facility 6 General Design 35 08 2.1 Design parameters 6 8.1 Design controls 35 2.2 Types of cycle facility 8 8.2 Horizontal and vertical alignment 39 8.3 Widths and clearances 41 03 Approved facilities within the road reserve 11 8.4 Construction 45 3.1 Separated cycleway (busy, fast, or heavy traffic) 11 8.5 Drainage 46 3.2 Separated cycleway (low volume and slow traffic) 14 8.6 Signs and markings 47 3.3 Alternatives requiring specific approval 15 8.7 Lighting 48 3.4 Mixed traffic streets 16 3.5 Cycle streets 16 Ancillary features 49 09 3.6 Pedestrian priority areas (cycling and pedestrians) 17 3.7 Interim facilities 20 Design for maintenance 52 10 Appendix A 04 Other infrastructure 22 Cycle parking 53 4.1 Buffered cycle lanes 22 A.1 Introduction 53 4.2 Cycle lanes 23 A.2 Bicycle Parking General principles 54 4.3 Cycle lanes between other traffic lanes 23 A.3 Categories of bicycle parking 56 4.4 Shared paths 24 A.4 Types of bicycle parking 58 A.5 Types of bicycle stands 64 05 Off road cycle paths 25 A.6 Bicycle parking placement 67 A.7 Bicycle parking access 68 06 Intersections 26 A.8 Bicycle stand materials 68 6.1 Cycleway intersections 27 A.9 Signage and wayfinding for bicycle parking 68 6.2 Roundabouts 27 A.10 Bicycle parking demand 69 6.3 Signalised intersections 28 A.11 Bicycle parking at public transport terminals 70 6.4 Unsignalised intersections 30 A.12 Bicycle parking provisioning process 71 6.5 Midblock crossing 31 A.13 Building and installation 72 6.6 Vehicle crossings 32 A.14 Operation and maintenance 72 5794_20.04.21 2 TDM | ENGINEERING DESIGN CODE 3 Cycling infrastructure 01 Introduction PURPOSE Cycling infrastructure includes facilities that are dedicated for cycle use, as well as specific standards for general infrastructure to meet the needs of cycle users.