Complete Streets
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A Minority of Streets Account for a Majority of Traffic Flow Bin Jiang
Street Hierarchies: A Minority of Streets Account for a Majority of Traffic Flow Bin Jiang Department of Land Surveying and Geo-informatics The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Email: [email protected] Abstract Urban streets are hierarchically organized in the sense that a majority of streets are trivial, while a minority of streets is vital. This hierarchy can be simply, but elegantly, characterized by the 80/20 principle, i.e. 80 percent of streets are less connected (below the average), while 20 percent of streets are well connected (above the average); out of the 20 percent, there is 1 percent of streets that are extremely well connected. This paper, using a European city as an example, examined, at a much more detailed level, such street hierarchies from the perspective of geometric and topological properties. Based on an empirical study, we further proved a previous conjecture that a minority of streets accounts for a majority of traffic flow; more accurately, the 20 percent of top streets accommodate 80 percent of traffic flow (20/80), and the 1 percent of top streets account for more than 20 percent of traffic flow (1/20). Our study provides new evidence as to how a city is (self-)organized, contributing to the understanding of cities and their evolution using increasingly available mobility geographic information. Keywords: urban street networks, street hierarchy, traffic, power laws, Zipf’s law, Pareto distributions 1. Introduction As a basic man-made infrastructure and backbone of cities, urban streets demonstrate a hierarchical structure in the sense that a majority is trivial, while a minority is vital. -
Transportationtransportation
Transportationtransportation City of Elmhurst Comprehensive Plan TransporTATion Elmhurst’s transportation system consists of an extensive roadway network, including direct access to Interstate High- ways I-290, I-294, and I-88, an extensive commuter rail and bus transit system, as well as a well-connected pedestrian and bike network. This transportation network allows for easy and accessible travel within the City and excellent con- nections to the surrounding metropolitan area. Elmhurst’s interstate highway and commuter rail access are among its strongest assets, making it a very desirable community for living and conducting business. Therefore, maintain- ing a well-functioning and efficient transportation system is critical to sustaining the high quality-of-life in the com- munity. A review of existing conditions, including average daily traffic and transit ridership history, formed the basis for the development of the transportation framework and functional street classification. Through this analysis, pri- Commuter and freight rail tracks ority improvement areas were identified, as well as general improvements or suggestions to manage population and employment growth, relative to a functional and efficient 8. Improve wayfinding signage throughout the city to aid transportation system. This section provides an overview pedestrians, bicyclists and motorists in locating and of the transportation network in Elmhurst and offers some accessing key community facilities. recommendations to sustain and strengthen community mobility. Goal 2: Maintain and determine adequate parking facilities to serve land uses throughout the city. Goals AND OBJECTIVES Objectives: Goal 1: Continue to enhance mobility within the City by 1. Actively monitor, manage and address on-street and effectively managing local traffic issues and anticipating the off-street parking needs within the city to ensure ad- impact of future development on current traffic patterns. -
Complete Streets Evaluation 2016 Planning Partners Conference
December 02, 2016 Complete Streets Evaluation 2016 Planning Partners Conference Topics Covered in this Presentation • What is a Complete Street? • Benefits and Challenges of Complete Streets • What is MMLOS? • Importance of Multimodal Evaluations • Methods of Evaluating MMLOS • Making Connections in Adams County What is a Complete Street? Complete Streets are streets for everyone. They are designed and operated to enable safe access for all users, including pedestrians, bicyclists, motorists and transit riders of all ages and abilities. Complete Streets make it easy to cross the street, walk to shops, and bicycle to work. They allow buses to run on time and make it safe for people to walk to and from train stations. -National Complete Streets Coalition What is a Complete Street? • Maximized auto capacity • Limited left-turn access • Limited pedestrian space • Long crossing distances for pedestrians • No clear cycling space Charlie Gandy – Livable Communities Inc. What is a Complete Street? • Reduced auto capacity • Dedicated cycling space • Increased left-turn access • Limited pedestrian space • Long crossing distances for pedestrians Charlie Gandy – Livable Communities Inc. What is a Complete Street? • Reduced auto capacity • Dedicated cycling space • Increased left-turn access • Limited pedestrian space • Increased treatments for safe pedestrian crossings Charlie Gandy – Livable Communities Inc. Benefits of Complete Streets Economic Roadway safety Shifting preferences for development urban environments Economic Benefits of Complete Streets Property Values: • Properties values along the Indianapolis Cultural Trail increased 148% after construction Indiana University Public Policy Institute Indianapolis Cultural Trail Economic Benefits of Complete Streets Property Values: • A one-point increase in WalkScore.com rating is associated with a $700 to $3,000 increase in property values Smart Growth America Economic Benefits of Complete Streets Retail Sales: • A study based on 78 businesses in Portland found that non-drivers spend similar amounts or more than drivers. -
PHILADELPHIA STREET HIERARCHIES Thomson Korostoff University Scholars Summer and Fall 2016
PHILADELPHIA STREET HIERARCHIES Thomson Korostoff University Scholars Summer and Fall 2016 Introduction The Philadelphia grid is considered one of the foundational American city plans, a pattern replicated across the nation that embodies geometry, legibility, and organization at its purest. A marked change, at its application in 1682, from the organic morphologies of European cities, the regularity of the drawn grid is startling. And over a century later Charles Dickens criticized Philadelphia: “It is a handsome city, but distractingly regular. After walking about for an hour or two, I felt that I would have given the world for a crooked street.”1 But this grid is deceptive. Inside each of the huge blocks of Philadelphia’s grid are myriad alleyways, courts, back-buildings, and passages that defied the regularity of the external blocks. Dickens’ take on the personal aesthetic experience of the grid highlights its superficiality. While these alleys are composed of straight lines, it is only the visual appearance of non-crooked corners in the alleys and courts that distinguishes Philadelphia from a curving organic form such as Boston’s. The means by which internal courts are built and formed is the same organic growth as a non-gridded city.2 Unclear The scale of Philadelphia’s grid and the localized nature of organic growth within it create a distinctive urban form of squares and interiors, one that under examination at an intermediate block-level scale reveals a distinct hierarchy of street types. This hierarchical urban fabric produces a diversity of architectural forms that in turn allow for a city that retains a remarkable level of demographic racial diversity into the 20th century. -
COMPLETE STREETS HANDBOOK CHECKLIST Philadelphia City Planning Commission
COMPLETE STREETS HANDBOOK CHECKLIST Philadelphia City Planning Commission INSTRUCTIONS This Checklist is an implementation tool of the Philadelphia Complete Streets Handbook (the “Handbook”) and enables City engineers and planners to review projects for their compliance with the Handbook’s policies. The handbook provides design guidance and does not supersede or replace language, standards or policies established in the City Code, City Plan or Manual on Uniform Traffic Control Devices (MUTCD). This checklist is used to document how project applicants considered and accommodated the needs of all users of city streets during the planning and/or design of projects affecting the public right-of-way. Departmental reviewers will use this checklist to confirm that submitted designs incorporate complete streets considerations (see §11-901 of The Philadelphia Code). Applicants for projects that require Civic Design Review or Plan of Development Review shall complete this checklist and attach it to plans submitted to the Philadelphia City Planning Commission for review. The Handbook can be accessed at http://philadelphiastreets.com/complete-streets.aspx. 1 COMPLETE STREETS HANDBOOK CHECKLIST Philadelphia City Planning Commission INSTRUCTIONS (continued) APPLICANTS ARE ADVISED TO NOTE: § This checklist is designed to be filled out electronically. Text fields will expand automatically as you type. § This checklist is estimated to take 60–90 minutes to complete for applicants familiar with the Handbook. § Answering “No” or “Not Applicable” (N/A) to questions in this checklist does not result in an automatic denial of approval. Applicants shall provide adequate explanation and comments to justify any such responses in the space provided at the end the checklist. -
Traffic Calming Some Definitions
Traffic Calming-- Some Definitions Traffic calming involves changes in street alignment, installation of barriers, and other physical measures to reduce traffic speeds and/or cut-through volumes, in the interest of street safety, livability, and other public purposes. 1 Traffic calming involves altering of motorist behavior on a street or on a street network. It also includes traffic management, which involves changing traffic routes or flows within a neighborhood. 2 Traffic calming consists of operational measures such as enhanced police enforcement, speed displays, and a community speed watch program, as well as such physical measures as edgelines, chokers, chicanes, traffic circles, speed humps and raised crosswalks. 3 History-European European traffic calming began as a grassroots movement in the late 1960s. Angry residents of the Dutch City of Delft fought cut-through traffic by turning their streets into woonerven, or "living yards." This was followed by the development of European slow streets (designed for 20 mph) in late 1970s; 4 European History continued.. The application of traffic calming principles to intercity highways through small Danish and German towns in the 1980s; And the treatment of urban arterials in area wide schemes, principally in Germany and France, also in the 1980s. 5 History - America In the U.S., a version of traffic calming was practiced as early as the late 1960s and early 1970s in such places as Berkeley, CA, Seattle, WA and Eugene,OR. 6 History-America Continued The first national study of traffic calming was completed circa 1980. It explored residential preferences related to traffic, collected performance data on speed humps, and reviewed legal issues. -
Alleys and Lanes Public Realm Framework 3.7 Street Type 4 - Alleys and Lanes
3.7 - Street Type 4 - Alleys and Lanes and - Alleys Type 4 - Street 3.7 Public Realm Framework 3.7 Street Type 4 - Alleys and Lanes ... Alleys and lanes are generally narrower than minor streets and are not streets as such. Alleys and lanes provided vehicle access to individual properƟes in some locaƟons, others are too narrow and are only used as pedestrian access routes. A number of historic alleys and lanes are found, parƟcularly within the city walls, which display tradiƟonal paving styles and natural stone materials and so the guidance which follows disƟnguishes between ‘historic’ and ‘general’ streets. The aspiraƟonal street hierarchy plan (Figure 3.4) proposes no changes to the exisƟng alleys and lanes in Chester city centre. However, there are opportuniƟes to develop a consistent approach to the surface treatment of these routes depending on their locaƟon (see guidance that follows). 4a Historic Alleys and Lanes Although only used by a limited number of • The scale of paving flags to pedestrian alleys/ pedestrians, these alleys and lanes add to the lanes should reflect the scale of these minor Description of Street Type richness of experience for visitors and allow an routes, with smaller flag units used compared to Although of least importance in terms of scale and opportunity for exploration and discovery. It is Principal Pedestrian Streets. function, a number of alleys and lanes within the city important that the materials used and idiosyncrasies • Design of vehicular lanes and alleys should centre core and particularly within the city walls are applied to historic alleys and lanes are maintained include vehicle entry points across pavements of historic importance by way of their context within where they already exist and although unlikely to be extending to the back of pavement/building built form and the presence of existing vernacular use of high priority it may be considered appropriate to line. -
Complete Streets Policy
Proposed City of Grand Junction Complete Streets Policy 1 City of Grand Junction Complete Streets Policy Vision: The Complete Streets Vision is to develop a safe, efficient, and reliable travel network of streets, sidewalks, and urban trails throughout the City of Grand Junction (City) to equitably serve ALL users and ALL modes of transportation. Complete Streets will provide residents improved access, safety, health and environment—helping Grand Junction to become the most livable community west of the Rockies. The Comprehensive Plan established specific strategies to implement its vision, guiding principles, goals and policies. In Chapter 5, Balanced Transportation, there are strategies to provide alternatives to getting around the community, increasing connectivity between neighborhoods, schools, parks, shopping and employment areas. It is through the buildout of neighborhood and village centers, along with strategies identified in the Comprehensive Plan and this Circulation Plan that will help the community achieve its vision of becoming the most livable City west of the Rockies. Grand Junction streets will be designed and maintained to be safe, attractive, accessible, convenient and comfortable for users of all ages and abilities and transportation modes. Complete Streets will make the City of Grand Junction more walkable and bikeable, support transit, foster community engagement, and support the local economy and property values. Complete Streets will strengthen quality of life by improving public health and safety, advancing mobility, enhancing livability and long- term sustainability to achieve the vision “to become the most livable community west of the Rockies.” Purpose: The City of Grand Junction commits to improvements that are planned, designed, constructed, operated, and maintained to support safe, efficient and convenient mobility for all roadway users—pedestrians, bicyclists, people who use mobility devices, transit riders, freight traffic, emergency response vehicles, and motorists—regardless of age or ability. -
Georgetown County Roadway Design & Construction Manual
Georgetown County Roadway Design & Construction Manual As Approved By Georgetown County Council November 18, 2014 Georgetown County Roadway Design and Construction Manual Introduction: Georgetown County Public Works Division is charged with improvements and maintenance of paved and unpaved roads of the unincorporated areas of Georgetown County. This includes the construction and maintenance of storm drainage systems (piping and ditches), right-of-way maintenance including the securing of R.O.W’s where needed, and coordination of Georgetown County’s pavement management program for secondary roads. It also includes the design and testing of road construction materials, the manufacture and installation of road signage (road names and traffic control), review of proposed development roads and associated drainage system, and the contracting and inspection of road improvement projects. Background of County Road Systems: Georgetown County road systems consist of contributed roads by developers and individual property owners, and roads by the County (in-house or contracted). There are approximately 955 roads in Georgetown County totaling 323 miles of roadway. 80 miles of these roads are paved and the other 243 miles consists of dirt roads and aggregate roads (stone, slag, recycled asphalt pavement (RAP) and other base materials). Right-of-ways vary on these roads. Some right-of-ways include only the maintained area of the roadway while others have mostly fifty foot right-of-ways. All developer contributed and County improvement roads require a minimum fifty foot road right-of-way. Existing roads vary in their cross section construction, right-of-way, drainage, materials of construction and design integrity. This is not uncommon as many of these roads were acquired by the County prior to standards for acceptance and through hardship waivers for access. -
Chapter 7 - Transportation Framework
Chapter 7 - Transportation Framework The transportation system is tied to a city’s future growth and development. The network of streets in a community helps determine land use configurations. It is a challenging task for cities to balance the access needs of shoppers and employees of local businesses and industries, provide efficient through transportation for regional travelers, and provide for recre- ational transportation opportunities. These challenges are further complicated by the need to provide for the often-conflict- ing needs of pedestrians and automobiles. Sauk Rapids has a transportation system typically found in outer-ring suburbs and older communities. “Suburban-type” system includes street layouts in the newer subdivisions of the city consisting of cul-de-sacs and curvilinear designs. In addition, Highway 10, Highway 15 and Highway 23 border the community and connect Sauk Rapids with the rest of the region. North-south access through and into/out of the city is generally good; and with the construction of the new Missis- sippi River crossing, east-west access will be improved. The remaining transportation system in the older part of the city is a typical, grid-like pattern of streets. This grid generally follows the Mississippi River, the BNSF railway corridor and Highway 10, all of which run north-south through the city. TRANSPORTATION PLANNING OBJECTIVES AND CYCLE Transportation planning is a study of the cyclical relationships between land development and the needs for transportation facilities. The steps that frequently -
1-19-16 Council Agenda Report
City Council Agenda Report Meeting Date: January 19, 2016 ClrYD,CH,CO TO: City Council FROM: Public Work Director - Engineering, Brendan Ottoboni, 879-6901 RE. ESPLANADE CORRIDOR SAFETY AND ACCESSABILITY STUDY UPDATE REPORT IN BRIEF: The City is currently engaged in a transportation safety and accessibility study of the Esplanade corridor between Memorial Wayand 11th Avenue, including a segment of the parallel facility, Oleander Avenue. Theoverall goal of this study is to improve the safety and accessibility of the Esplanade for all modes of transportation while maintaining the tree-lined "Boulevard" design so iconic to Chico. Following is an update to the Council on the status of the study, review of the results of the public outreach effort, and preview of the preferred design recommendations. The Esplanade Corridor Study team, including Public Works staff and the City's consulting traffic engineer. Steve Weinberger of W-Trans, continues to seek community participation in the development of the Study and, over the course of the next month, will be finalizing the preferred design concepts developed through the analysis of corridor operations and community input. The team will present a recommended package of improvements at the forthcoming third and final Esplanade Corridor Improvement Study Public Workshop scheduled for March gth, 2016. Following the workshop, W-Trans will prepare the Draft Esplanade Corridor Safety and Accessibility Study which will include traffic data and analysis, results of the public outreach effort, and the preferred design recommendations for Council consideration. With City Council approval, the resultant study will serve as a guiding document for future grant applications to fund recommended improvements. -
Esplanade Ave Esplanade Ave
New Orleans Complete Streets Experience CITY OF NEW ORLEANS Louis Haywood Department of Public Works January 19, 2016 Complete Streets policies Ensure that the entire right-of-way is planned, designed, constructed, operated, and maintained to provide safe access for all users Credit: National Complete Streets Coalition New Orleans CS Program • “…by requiring that all planning, designing, funding, operation and maintenance of the city's transportation system to accommodate and encourage travel for all users in a balanced, responsible and equitable manner consistent with, and supportive of, the surrounding community.” Credit: National Complete Streets Coalition Complete Streets User Groups Bicyclists • All Ages Transit ALL Motorists • Stops • Safety • Crossings USERS • Clarity Pedestrians • Old • Young • Disabled Complete Streets: Is a high-level policy direction Changes the everyday decision-making processes and systems Represents an incremental approach Has long-term results Credit: National Complete Streets Coalition Complete Streets is not: • A one-off “special” street project • A design prescription • A mandate for immediate retrofit • A silver bullet; other issues must be addressed: – Land use (proximity, mixed-use) – Environmental concerns – Transportation Demand Management Credit: National Complete Streets Coalition Standard New Orleans Residential Street Complete? YES! Streetscapes and Sidewalks Oak Street Reconstruction Oak Street Reconstruction Bike Racks Street Trees Concrete Crosswalks Curb Extensions w/ Brick Accents! Decorative