Walkability Assessment in Cities
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Walkability Walkability is a measure of how friendly an area is to walking. To measure the connectivity and quality of walkways, footpaths or sidewalks.
Reflects the built environment health, economics and overall livability of the area. Now became a guiding framework to design vibrant and healthy communities through urban planning interventions. An alternative form of urban mobility.
Walkability is not just having footpaths all along the city roads. It is a combination of various aspects • Availability and usability of footpaths
• Safe at-grade crossings • Safety • Amenities – Lighting, Shade, Benches • Respect from motorists. https://www.thebetterindia.co m/106016/bengalurustmarksroad-road
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Why Walkability Concept is being promoted? • Indian cities were built for walking and cycling. • However, The constant development of technology and the desire to move more quickly have led to the creation of vehicular traffic in cities with an automobile oriented development led to decrease in non-motorised trip share.
• As road is meant for both motorists and pedestrians, but pedestrians are forced to corner with inadequate facilities. • The attempt to solve these problems have been compelled to reflect on whom the city is for. • It has been acknowledged that transport should be good not just for drivers, but also other people and their public health, as well as for the environment and the economy. As such, it is connected with sustainable transport policies. • One idea to realize the goals of sustainable transport has focus to create urbanfriendly cities that led to the phenomenon known as ‘walkable cities’
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Trip Mode share in Indian Cities Table: Trip mode shares in Indian cities City Category
Population
1A
<0.5 million (Plain Terrain)
Walk
Cycle
2-wheeler
Car
Public
IPT
Aerage Trip Length in Km.
34
3
26
5
27
5
2.4
1B
<0.5 million (Hilly 57 Terrain)
1
6
8
28
0
2.5
2
0.5-1 million
32
20
24
9
12
3
3.5
3
1-2 million
24
19
24
13
12
8
4.7
4
2-4 million
25
18
29
10
12
6
5.7
5
4-8 million
25
11
26
21
10
7
7.2
6
>8 million
22
8
9
44
10
7
10.4
28
11
16
27
13
6
7.7
National
Trip Mode Share
Intermediate Public Transport (IPT) â&#x20AC;&#x201C; modes that fill the gap between private and formal public transport such as share autos, cabs Source: Ministry of Urban Development. May, 2008. Study on Traffic and Transportation Policies and Strategies in Urban Areas in India
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Factors that impact walkability
Figure: Conceptual relations of factors influencing walking behavior Source: Schmid J. 2006. The relationship between the built environment and physical activity in the form of walking trips. 5 Masterâ&#x20AC;&#x2122;s Thesis, Uniersity of Lusanne.
Factors that impact walkability Physical or Built
Personal
• Block or Neighbourhood size
• Trip – Purpose
• Residential density
• Walking time & distance
• Land use
• Spatial familiarity & adaptation
• Network proximity to amenities
• Routines & needs
• Traffic safety infrastructure
• Shopping choice
• Pleasurability along the walk
• Socio-economics
- Trees for shade & Benches for rest Social
Utility Factor
Climate
• Safety
• Amenities
• Temperature
• Social isolation
• Street segments
• Rainfall Characteristics
• Behaviour norms of system users
• intersections
• Humidity 6
Role of social factors Walkability conceptually adjusted to include social factors shaping the travel behaviour. • To more precisely account for travel behaviour in the city.
• To maximise the number of potential opportunities for residents to meet their needs on foot – voluntarily and satisfactorily, regardless of their socio-economic constraints. Source: Geoffrey A Battista, Kevin Manaugh. 2018. Stores and mores: Toward socializing walkability. Journal of Transport Geography. 67, 53–60
Needs of Walkability • • • • •
Pleasurability Comfort Safety Accessibility Feasibility 7
What makes a Neighbourhood Walkable Center Density
Parks and public spaces On street parallel parking
shopping district, public space acts a center. compact enough for flourishing local businesses & frequent run public transportation. housing is provided for everyone – young & old, singles & families, rich & poor. Workplaces and residences are located near to each other. to gather & play acts as a buffer of protection
Pedestrian – centric design Nearby schools and workplaces Narrow streets
buildings are placed close to street to cater foot traffic. located close enough that most residents can walk from their homes low speeds
Mixed income & land use
High walkable friendly neighbourhoods has their amenities within 5 minutes walk i.e. 400-600m Neighbourhoods with amenities away about 30 minutes walk (2-2.5km)are considered less friendly 8
Advantages of Walkability Promotes sustainable transport development Physical Activity Improves environmental outcomes Fuel economic development
It provides information on current pedestrian infrastructure and addresses the problems & factors that are to be considered for development and helps in Renovating or redesign of pedestrian network. sets as a example / Benchmark while making new developments walkable friendly.
Benchmarking walkability parameters to improve walkability. Prioritizing non-motorised transport with public transport allows people to enjoy better access, mobility and quality of life. 9
Walkability Assessment To improve walkability, we need a method to accurately and objectively measure it, so that it is possible to better determine what exactly needs to be changed. Several methodologies or tools exist to assess walkability They vary with regard to emphasis on qualitative or quantitative assessment, components or parameters, sampling and scoring. Walkability assessment comprises of 3 surveys
1. Field Walkability survey 2. Pedestrian survey 3. Assessment of Policy and institutional guidelines
To rate the parameters on the street stretches based on availability, condition & maintenance Interviews conducted to understand travel & social characteristics, views & preferences of pedestrians. Review of administrative role in policies, guidelines and allocation of financial resources.
Note: Field and pedestrian surveys are conducted during peak hours to capture the peak-hour pedestrian movement
Source: Luis Neto. 2015. The Walkability Index. School of Environment, Education & Development
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Field survey Methodology Time of Survey Objective of walkability is to compare streets and cities, surveys are to be done during peak hours (morning or evening). Evening 3pm - 8pm gives best results as they tend to be busier than morning. Route Selection the surveys are to be carried out in major usage areas in a city.
• Commercial area
– 5km of interconnected roads within a 1km radius
• Public transport terminal
– 2km of pedestrian facilities within a 1km radius
• Educational area
– 4km of pedestrian facilities within a 1km radius
• Residential area
– 2km of length, investigate route taken by residents from home to access public transport (further classified based on socio-economic characters) Field Survey Parameters The details like gender, age, occupation and annual household income of the pedestrian will help in subjective and qualitative perceptions of the user. 11
Parameters Used for Assessing 1. Walking path modal conflict
10. Disability infrastructure
19. Walking time
2. Pedestrian count or volume
11. Obstructions
20. De-Tour factors
3. Availability of walking paths
12. Encroachments
4. Footpath width
13. Walk environment
5. Footpath continuity
14. Comfort
6. Availability of crossings
15. Security form crime
7. Grade crossing safety
16. Maintenance & cleanliness
8. Motorist behaviour
17. Footpath surface
9. Amenities
18. Length of surface
These parameters are rated on the scale of 1-5 or 1-10 for each area in a city. The rating of an area is taken as average of all the parameters are translated into a rating system from 0 (lowest score) to 100 (highest score). City walkability rating is taken average of all the ratings in different areas.
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Path conflicts of different users at crossings Source: ITDP Manual / Problems at crossings
Wide footpaths with dedicated seating spaces at ITI road, Pune Source: Smart city/ Pune street program/ footpaths
Improper maintenance of footpaths Source: Deccan chronicle / 03 Sept 2018/ Bangalore / garbage on foot paths
Encroachments on footpaths Source: INS News/ 28 Dec 2017/ Jammu/ JMC / Encroachments 13
Rating or Scores for Parameters Parameter
Rating 1
2
3
4
5
Walking path modal conflict
Conflict that makes impossible
Conflict that makes walking possible but inconvenient
Some conflict
Minimal conflict
No conflict with other modes
Availability of walking paths
required but not available
Available but highly congested
Available, needs maintenance
Available, sometimes congested
Not required, people an safely walk on roads
Availability of crossings
@ >500m & avg. speed is high
@ 300-500m & avg. speed is 40kmph
@ 200-300m & @ 100-200m & avg. avg. speed is 20- speed is 20-40kmph 40kmph
Grade crossing safety
Very high Dangerous- some risk of Difficult to safe probability of being hurt ascertain danger accidents & crossing time
Very safe
Amenities (benches, light, toilets, trees)
No amenities
Little at some locations
Good amenities for major length
Excellent amenities making pleasant experience
Obstructions
Completely blocked by permanent obstructions
Inconvenience, effective Mildly width <1m inconvenience, Temporary obstacles
Minor inconvenience, Temporary obstacles , Effective width >1m
No obstructions
Security & Crime
Very dangerous
Feels dangerous
Secure â&#x20AC;&#x201C; min. criminal risk
Very secure â&#x20AC;&#x201C; no risk of crime
Limited no. provisions
Difficult to ascertain security
No need, pedestrians are safe to cross
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Assessment Methodology
Commercial, Public Transport Terminal, Educational, Residential
Source: Ministry of Urban Development. May, 2008. Study on Traffic and Transportation Policies and Strategies in Urban Areas in India
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Walkability Assessment Tools Tools
Objectives
Walkability Score
Assesses based on distance to amenities and footpaths quality
Walkability Index
Assesses availability of footpaths and rating of pedestrian facilities
Global Walkability Index
Assesses Qualitative & Quantitative of footpaths and pedestrian behaviour
Active living research – Neighbourhood Environment Walkability Scale(NEWS)
Assesses the perception of neighbourhood design features related to physical activity
Walking and Bicycling Suitability Assessment (WABSA)
Assesses suitability of sidewalks and cycle tracks in local streets – to identify design problems than suitability score
Living Communities – Sidewalks & street Survey
Assesses how safer the communities for walking
PEAT(Path Environment Audit Tool)
Assesses physical characteristics of community paths and trails that are used for physical activities
WSAF(Walking Suitability Assessment Form)
Assesses walking suitability of sidewalks and cycle tracks
Analytic Audit Tool
To determine links between streets and rates of physical activity
I-M (Irvine Minnesota) Inventory
Measures wide range of built environment characteristics that are linked to active living
Active Neighborhood Checklist
Street level characteristics that are linked to physical activity behavior
PEDS(Pedestrian Environment Data Scan)
Collect info. About walking environments and measure environmental characteristics that influence walking
MAPS(Micro scale Audit of Pedestrian Streetscape)
To collect audit data on pedestrian environment and walkability in neighborhoods
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Comparison of Walkability Assessment Tools Assessment Tool
Scale
Assessing Methodology
Data Collection
Limitations
Walkability index (Qualitative & Quantitative)
Macro & Micro
Availability of footpaths and rating of pedestrian facilities
Field study – rating of pedestrian Difficult to asses which infrastructure parameter needs improvement
Walk Score (Quantitative)
Macro
Walk time to amenities, density, block length, intersection density.
Data from Online open street maps (google maps)
Qualitative assessment of pedestrian facilities (width, design, traffic & crime safety)
Global Walkability Index (Qualitative & Quantitative)
Macro & Micro
Pedestrian count, Walking conditions including Safety, security & convenience
Field study , Interviews from pedestrians, & policies by administrative institutions GIS for processing spatial data
Difficult to asses which parameter needs improvement Considers only footpaths with >1.2m wide.
Neighbourhood Environment Walkability Scale
Micro
Participants to estimate the frequency and duration of time spent walking in past 7 days using Physical Activity Questionnaire
Field study , Interviews from pedestrians, GIS processing
The modest sample size and the non-probability nature of the sample may reduce generalizability of findings.
Walking and Bicycling Suitability Assessment
Micro
Volume, speed, width, surface quality, curb ramps
Field study
Small sample of road segments are taken => unstable conclusions.
Living Communities – Sidewalks & street Survey
Micro
width, surface quality, maintenance, usage
Field study
Even unused footpaths are considered as good.
Path Environment Audit Tool(PEAT)
Macro & Micro
physical characteristics of community paths used for physical activities
Field study – manual & digital
Require complex training and/or scoring procedures because they were designed for research. Complexity, burden & high auditing17cost
Walkability Assessment in India In India, MOUD(National level) & Municipal corporations(Local level) are the institutions responsible for improving walkability. MOUD uses Walkability Index - function based on availability of footpaths and rating of pedestrian facilities. It ranges between 0 to 1. The national average index in 2008 was 0.52 (CSE, 2009) MOUD also developed ‘Urban Transport Benchmarking Tool’ that uses only 3 indicators to calculate pedestrian facility rating • Signalized intersection delay/pedestrian • Street lighting
• % of city covered with footpaths wider than 1.2m Pedestrian infrastructure and demand for walking of different cities can be compared using a standard survey methodology and generating a walkability index. Source: Ministry of Urban Development. May, 2008. Study on Traffic and Transportation Policies and Strategies in Urban Areas in India
Centre for Science and Environment (CSE). 2009. Footfalls: Obstacle Course to Livable Cities. New Delhi, India. July 2009.
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Walkability Index Walkability index = [(w₁ x availability of footpath) + (w₂ x pedestrian facility ratings)] • w₁ & w₂ are weights (assumed 50% for each) i.e. w₁ = w₂ = 0.5
• availability of foot paths =
Foot path length / Length of major roads in the city
• Pedestrian facility rating = i.e. walkability score
Average score estimated based on parameters on available pedestrian facilities / 100
The practice of Indian Design Guidelines for Pedestrian Facilities (IRC 103-1998) in the current scenario effecting the walkability index as population, vehicular traffic in cities has increased. Source: Ministry of Urban Development. May, 2008. Study on Traffic and Transportation Policies and Strategies in Urban Areas in India
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Walkability Score A walk score is a number between 0 to 100. Calculated by adding all the scores of the parameters on 0-10 scale and total is made relative to 100. Points are awarded based on the distance to nearby amenities – stores, schools, parks. It measures pedestrian friendliness by analysing population density and road metrics such as block length and intersection density. Walkable friendly Neighbourhoods / cities are classified based on its walk score.
Walk score classification
Remarks
90-100
walkers paradise
most errands can be accomplished on foot without owning a vehicle
70-89
Very walkable
Possible without owning a vehicle
50-69
Some what walkable
Store & amenities may be within walkable distance, but many everyday trips require vehicular transportation.
25-49
Vehicular-Dependent
Only few destinations are with in walking range. But for most errands driving or public transportation is must
0-24
Only Vehicular-Dependent
No neighbourhood destinations are within walking range.
Source: walkscore methodology. Retrieved from walkscore.com: https://www.walkscore.com/methodology.shtml
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Other Tools Data Analysis
Source: Pallavi C Nath. 2016. Validating Walakbility Parameters in Urban India. Masterâ&#x20AC;&#x2122;s Thesis, SPA Delhi
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Walkability Economics Walking means to solve many social ills such as global warming, traffic congestion, oil dependency and other health issues. The importance of urban planning for sustainable development is important.
Quality of air we breathe and water we drink all comes under the issue of planning and development. Consequences on: climate-change, biodiversity, transportation development pattern. Challenges to build green communities and their objectives are: 1. Better scientific community
2. Relief from high petrol prices 3. Reduction in green house gas emissions
4. Rely on energy efficient buildings 5. Reduce distances from origin to destination 6. Reduce the need for costly roads and infrastructure 22
Walkability in Different Indian Cities ď&#x201A;§ Clean Air Initiative for Asian Cities(CAI-Asia) Center conducted walakability assessment in Indian cities â&#x20AC;&#x201C; Pune, Bhubaneswar, Chennai, Bangalore
People using grade crossing than subways at Chennai central station https://walkabilityasia.org/Chennai-india
Parking on footpaths in front of commercial area https://www.telegraphindia.com/states/odisha/squattersback-on-janpath
Hawkers on footpath opposite to Pune railway station https://www.hindustantimes.com/pune-news/punekars forced to walk on roads
No footpaths & grade crossings, no proper bus stops at silk road junction https://www.lequirk.com/016/07/KR-Puram-Traffic
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Population
Pune
Bhubaneshwar
Bangalore
Chennai
34 Lakhs
8.38 Lakhs
123 Lakhs
70.9 Lakhs
0.50
0.46
0.40
(As per Census 2011)
Walkability Index 0.54 Key Parameters with major problems Problems Identified
Paths and Infrastructure Foot paths & crossings, Motorist Behavior (50% of Grade crossings, foot at residential & transport infrastructure 900 avg. road accidents path width & continuity terminals are pedestrians) 1. Frontage at railway station 2. Damaged foot paths 3. Obstructions by vendors and displays 4. Grade crossing time & lack of safety at signals 5. Cleanliness & odor from adjacent drainages
1. Lack of clear footpaths at transport terminals 2. Lack of pedestrian amenities 3. Crossing on roads with high speeds 4. Obstruction by Parking in commercial areas 5. Trash disposal on foot paths
1. Min. or no space to cross at zebra crossing as vehicles stopping on it. 2. Vehicles driven on footpaths. 3. Disable un-friendly 4. Wide roads with high speed vehicles (mainly airport road)
1. Lack of clear footpaths at transport terminals 2. Uneven & discontinuous paths 3. Not opting of subways & overhead crossings, not secure at night 4. Exposure to air pollution 5. Obstacles & cleaning
Rectifications Proposed
1. Overhead crossings & subways are proposed 2. Up-gradation of public transport 3. Barricades on roads at transit terminals.
1. Safe at grade crossings 2. marked Parking provisions along commercial street
1. Yellow zigzag lines at junctions are provided.
1. Escalators for 20 overhead crossings 2. Width = 1.5m(residential)& 3m(major roads)
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Conclusion Walkability should be treated as an ongoing phenomenon along with the development of the urban area. Planners and policy makers should work with a broad base of partners to improve access to amenities within walking distance, through physical and social projects. While deeply exploring the user circumstances to interventions which 1. Allow more people to safely and comfortably access more opportunities.
2. People participation to the design of urban spaces. Indian Design Guidelines (IRC 103-1998), for Pedestrians have to be modified considering aspiring future. Pedestrian facilities need more attention for separate walking paths, amenities & universal design. Providing footpaths where not required leads to encroachments / occupancy by homeless people, so the provision has to be done after assessing the link. 25
References 1. Ministry of Urban Development (MOUD), India. May, 2008. Study on traffic and transportation policies and strategies in urban areas in India 2. Richa Singh. 2016. Factors affecting walkability of neighborhoods. Urban Planning and Architecture Design for Sustainable Development. Social and Behavioral science. Vol-216, Pg.643-654 3. Geoffrey A Battista, Kevin Manaugh. 2018. Stores and mores: Toward socializing walkability. Journal of Transport Geography. Vol-67, Pg.53–60 4. Luis Neto. 2015. The Walkability Index. School of Environment, Education & Development 5. Centre for Science and Environment (CSE). July, 2009 Footfalls: Obstacle Course to Livable Cities. New Delhi, India.
6. Pragia Minhas, Arunava Poddar. 2017. Walkability index by global walkability index method. International research journal of engineering and technology(IRJET). ISSN:2395, Pg.56-72 7. Clean Air Initiative for Asian Cities(CAI-Asia) Center. 2011. Walkability in Indian cities. Pasig City, Philippines 8. Schmid J. 2006. The relationship between the built environment and physical activity in the form of walking trips. Master’s Thesis, Uniersity of Lusanne. 9. Pallavi C Nath. 2016. Validating Walakbility Parameters in Urban India, Establishing a Relationship between walkability and the built environment. Master’s Thesis, SPA Delhi. 10. walkscore methodology. Retrieved from walkscore.com: https://www.walkscore.com/methodology.shtml
11. Walkability Asia. Retrieved from walkabilityasia.org: https://www.walkability asia.org/India
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THANK YOU
Prepared by KOLLI RAJESH B. Architecture (2013-2018) M. City Planning (MCP) (2018-2020) Dept. of Architecture & Regional Planning IIT Kharagpur kollirajesh888@gmail.com
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