Chapter 13: Service Gap Mapping

Chapter Overview

Service gap mapping identifies where services are absent, inadequate, or inaccessible to those who need them. This chapter examines multiple dimensions of service gaps: physical access, awareness, eligibility criteria, organizational capacity, and structural barriers including transportation, digital access, cost, and culture. It teaches students to map service deserts — areas where essential services are beyond reasonable reach — and to analyze the systemic patterns that create and sustain these gaps. Service gap mapping demands ethical rigor: gaps represent real harm to real people, and maps must inform action, not simply document suffering.

Learning Outcomes

By the end of this chapter, you will be able to:

Define service gaps and distinguish among access, awareness, eligibility, capacity, and barrier-related gaps
Identify and map service deserts for essential services including healthcare, banking, childcare, and food access
Analyze transportation barriers and their differential impact on vulnerable populations
Recognize digital access barriers across geography, generation, economics, and literacy
Evaluate eligibility gaps that exclude people who fall between program criteria
Apply service gap analysis to support advocacy, planning, and service coordination
Conduct a service ecosystem analysis that integrates gap mapping with strengths-based approaches

Key Terms

Service Gap: The difference between community need for a service and the availability, accessibility, or adequacy of that service.
Service Desert: A geographic area where residents lack reasonable access to essential services such as healthcare, banking, childcare, or grocery stores.
Access Barrier: Any factor that prevents or inhibits people from reaching or using a service, including distance, cost, eligibility rules, language, or cultural mismatch.
Eligibility Gap: The situation where individuals or families fall outside program criteria despite genuine need, often because income thresholds exclude the working poor.
Capacity Gap: When a service exists but cannot meet demand due to waitlists, staff shortages, funding limits, or facility constraints.

13.1 What Is a Service Gap?

A service gap exists when the need for a service exceeds what is available, accessible, or adequate. Service gaps are not abstract policy problems — they represent real harm. A parent who cannot find affordable childcare may lose their job. A senior without transportation to medical appointments may go untreated. A family that lives too far from a grocery store may rely on expensive convenience store food, worsening both health and financial stress.

Service gaps have multiple dimensions. A service might exist in theory but be inaccessible in practice because it is too far away, too expensive, offered at inconvenient times, poorly advertised, culturally unwelcoming, or restricted by eligibility rules that exclude those in need. A service might be accessible to some but not others — revealing equity gaps that track along lines of income, race, language, disability, age, or geography.

Service gap mapping makes these gaps visible. It answers questions like: Where do people live who need mental health services? Where are those services located? How far must people travel? What hours are services available? What languages are offered? Who is eligible? What does it cost? Are there waitlists? These questions require integrating spatial data (locations of people and services), attribute data (service characteristics, eligibility rules, costs), and qualitative knowledge (barriers reported by residents and frontline workers).

Effective service gap mapping requires pairing need and supply. Mapping services alone is not gap mapping — it is asset mapping. Mapping vulnerable populations alone is not gap mapping — it is needs mapping. Gap mapping is the intersection: showing where high need and low service availability coincide, and analyzing the structural reasons why.

Service gap mapping must also be time-sensitive. Gaps change. Services open and close. Demand shifts. A map showing healthcare gaps during the COVID-19 pandemic looked very different from a map made five years earlier. Gap mapping requires regular updates and responsiveness to emerging needs.

Finally, service gap mapping carries ethical weight. Documenting gaps without advocating for solutions can feel extractive. Showing where services are absent without explaining why risks blaming communities for problems rooted in policy, funding, and structural inequity. Gap mapping must be paired with action: supporting service expansion, policy reform, coordination, or community-led alternatives.

13.2 Access Gaps

Access gaps occur when services exist but are out of reach — geographically, temporally, or practically. The most common form is geographic access: services are too far away for residents to reach easily. A rural town with no local healthcare clinic, requiring residents to drive 45 minutes to the nearest facility, faces a geographic access gap. An inner-city neighborhood where the closest grocery store is three bus transfers away faces the same problem in a different context.

Geographic access mapping typically uses distance or travel time buffers around services. A common standard for primary healthcare is 5-10 km in urban areas, 30 km in rural areas. For daily needs like grocery stores or pharmacies, standards are tighter: 1-2 km walkable distance in urban settings. But these are guidelines, not absolutes. The "right" distance depends on the service, the population, the transportation infrastructure, and local context.

Temporal access gaps occur when services operate at times that conflict with residents' schedules. A childcare center that closes at 4 p.m. is inaccessible to parents who work until 5:30 p.m. A food bank open only weekdays from 9 a.m. to 3 p.m. is inaccessible to people with full-time jobs. Mapping temporal access requires documenting service hours and cross-referencing them with the schedules of those who need them — which often means talking to residents, not just reading websites.

Practical access gaps include factors like lack of parking, lack of wheelchair ramps, lack of accessible public transit connections, or lack of childcare during appointments. A mental health clinic located on the third floor of a building with no elevator is inaccessible to people with mobility limitations. A legal aid office without childcare support is inaccessible to single parents. These barriers are not always visible in standard datasets and require ground-truthing, accessibility audits, and input from people with lived experience.

Mapping access gaps effectively requires understanding who is most affected. A 10 km distance to a service may be trivial for someone with a car, but insurmountable for someone who relies on infrequent rural transit, uses a wheelchair, or cannot afford the bus fare. Access gap mapping must layer vulnerability: showing not just where services are distant, but where distant services coincide with low car ownership, poor transit, high poverty, high disability rates, or aging populations.

13.3 Awareness Gaps

Awareness gaps occur when services exist and are accessible, but people do not know about them. This is especially common for newer services, smaller nonprofits without marketing budgets, culturally specific programs, and services embedded in institutions (like school-based health clinics) that may not be visible to non-users.

Awareness gaps are invisible to standard service inventories. A map showing that a neighborhood has a youth mental health program is accurate — but if local youth do not know the program exists, or believe it is "not for them," the gap persists. Mapping awareness gaps requires asking residents and service users what they know and how they found out about services. It requires analyzing how information circulates: through schools, community centers, social media, word-of-mouth, municipal websites, or 211 referral lines.

Awareness gaps are not distributed evenly. Newcomers to a community often face the steepest awareness barriers. Seniors who are not digitally connected may miss services advertised only online. Non-English speakers may not have access to translated outreach materials. People experiencing homelessness may lack stable contact information to receive mail or phone calls about services. These are equity issues, not just marketing problems.

Mapping awareness gaps can take several forms. One approach is service knowledge surveys, where community members are asked to name or describe available services. Gaps appear where services exist but are not named. Another approach is information pathway mapping, documenting how residents learn about services and identifying which pathways reach which populations. A third approach is mystery shopping, where researchers pose as service-seekers to test whether services are findable through typical search methods (Google, 211, municipal directories).

Addressing awareness gaps requires targeted, culturally responsive outreach. It also requires investing in trusted intermediaries — community connectors, peer navigators, and frontline workers who bridge the awareness gap through relationships. Mapping awareness gaps helps identify where these connectors are needed most.

13.4 Eligibility Gaps

Eligibility gaps occur when people need a service but do not meet the criteria to access it. These gaps are among the most frustrating for residents and frontline workers alike. A family earns $2,000 more per year than the income cutoff for subsidized childcare — and must now pay full market rates they cannot afford. A senior is "not quite sick enough" to qualify for home care but cannot manage independently. A person experiencing housing insecurity does not meet the definition of "homeless" and is therefore ineligible for emergency shelter.

Eligibility gaps reveal the rigidity of program design. Many social programs use categorical eligibility (you must fit into a predefined box) rather than sliding scales or holistic assessments. The result is cliff effects: small increases in income or small changes in status result in sudden loss of supports, often leaving people worse off than before.

Mapping eligibility gaps requires understanding program rules in detail. A service inventory that lists "family counseling" is incomplete without specifying: Who is eligible? Is there an income test? Age limits? Residency requirements? Immigration status requirements? Referral requirements? These details are often not published and require direct contact with service providers.

Once eligibility rules are documented, gap mapping layers them against population data. A youth employment program that only serves ages 16-24 creates an eligibility gap for 25-29-year-olds facing the same barriers. A housing subsidy restricted to families with children creates a gap for single adults and childless couples. Mapping these gaps makes the exclusions visible — and provides evidence for policy reform.

Eligibility gaps often intersect with other gaps. A person who is ineligible for a subsidized service may be able to access a private alternative — if they can afford it, if it exists, if they know about it, and if they can reach it. For low-income residents in rural or underserved urban areas, ineligibility often means no service at all.

Addressing eligibility gaps requires advocacy for policy change: expanding income thresholds, removing arbitrary age or residency restrictions, or shifting from categorical to universal or sliding-scale models. It also requires service providers to be transparent about eligibility and to help people navigate alternatives when they do not qualify.

13.5 Capacity Gaps

Capacity gaps occur when services exist, are accessible, and people are eligible — but there are not enough resources to meet demand. Capacity gaps appear as waitlists, appointment delays, overcrowded facilities, burned-out staff, and programs that must turn people away.

Capacity gaps are common in publicly funded and nonprofit services where demand exceeds budget. A mental health agency may have a six-month waitlist for counseling. A childcare center may have 200 families on the waiting list for 30 spaces. A legal aid clinic may only accept one in ten applicants due to case load limits. These are not failures of individual organizations — they are symptoms of systemic underfunding.

Mapping capacity gaps requires both quantitative and qualitative data. Quantitative indicators include waitlist lengths, average wait times, service utilization rates (e.g., 150% of capacity), staff-to-client ratios, and rejection rates. Qualitative data includes reports from frontline workers about "turning people away," "triaging only the most urgent cases," or "not advertising because we can't serve more."

Capacity gaps are not distributed evenly. They tend to be worst in high-need areas and for under-resourced populations. Urban neighborhoods with high poverty may have long waitlists for subsidized childcare, while wealthier suburbs have private options with immediate availability. Rural areas with few service providers may face capacity gaps simply because there is no backup when one provider is full.

Mapping capacity gaps can reveal leverage points for intervention. If multiple providers in the same area all report capacity gaps, the solution may be funding for expansion or new providers. If one provider is overwhelmed while others nearby have capacity, the solution may be better referral coordination. If capacity gaps are worst at certain times (e.g., start of school year for youth services), the solution may be seasonal staffing or early outreach.

Addressing capacity gaps requires political will and funding. Gap maps become advocacy tools: showing decision-makers the scale of unmet need, the human cost of waitlists, and the return on investment of expanding services. Capacity gap mapping must be honest about the fact that many gaps cannot be filled by coordination or efficiency alone — they require new resources.

13.6 Transportation Barriers

Transportation barriers are one of the most common and most consequential service access obstacles. People who cannot reach a service cannot use it, no matter how good the service is. Transportation barriers are not just about distance — they are about the availability, affordability, accessibility, and reliability of transportation options.

In rural and remote areas, transportation barriers are often geographic. Services may be 50 km away, with no public transit and limited informal ride-sharing. Even residents with cars face barriers if they cannot afford gas, if winter roads are dangerous, or if the vehicle is unreliable. Rural transportation gap mapping must account for distance, road conditions, transit availability, and household vehicle access.

In urban areas, transportation barriers are more often about transit equity. Low-income neighborhoods may have infrequent bus service, long travel times requiring multiple transfers, and limited evening or weekend routes. A service that is 5 km away may take 90 minutes to reach by bus versus 15 minutes by car. Mapping transit access requires modeling actual travel times via public transit, not just straight-line distance.

Transportation barriers intersect with other vulnerabilities. Seniors, people with disabilities, parents with young children, and people carrying groceries or medical equipment face greater challenges using public transit. A transit route that is technically accessible may not be practically accessible if it requires long walks to bus stops, long waits in weather, or navigating stairs or busy streets.

Mapping transportation barriers typically combines several data layers:

Service locations and the populations that need them
Public transit routes and schedules
Travel time analysis (isochrones showing 15-minute, 30-minute, 60-minute travel zones)
Household vehicle ownership rates by neighborhood
Accessibility features (wheelchair-accessible transit, shelters, sidewalks)
Reported barriers from residents and service users

Effective transportation barrier mapping also accounts for trip chaining — the reality that people rarely make single-purpose trips. A parent may need to drop children at school, get to work, attend a medical appointment, pick up groceries, and return home. A service that is reachable by transit may still be inaccessible if the transit schedule does not allow for this kind of multi-stop trip.

Addressing transportation barriers requires multi-pronged solutions: expanding public transit, subsidizing ride-sharing or taxi vouchers, supporting volunteer driver programs, co-locating services to reduce trips, and offering mobile or outreach services that come to people rather than requiring them to travel.

13.7 Digital Access Barriers

Digital access barriers prevent people from accessing online services, information, and supports. These barriers are often invisible to those who are digitally connected — but for those without reliable internet, devices, or digital literacy, the barrier is absolute.

Digital access barriers have four dimensions: infrastructure, economics, generation, and literacy.

Infrastructure barriers are geographic. Rural and remote areas often lack high-speed internet. Even in cities, some low-income neighborhoods have limited broadband options. Mapping infrastructure barriers requires data on broadband availability, internet speeds, and gaps in coverage. In Canada, the CRTC's broadband mapping data is a starting point, but community-reported experience often reveals gaps that official maps miss.

Economic barriers occur when people cannot afford internet service or devices. A household paying for internet must choose between connectivity and other necessities. A family with one shared device cannot support multiple children doing online schoolwork while a parent accesses telehealth. Mapping economic barriers requires layering income data with service availability — showing where digital services are offered but likely out of reach due to cost.

Generational barriers reflect the reality that older adults, especially those who did not grow up with digital technology, may lack comfort or skills to use online services. A seniors' health portal that assumes familiarity with email, passwords, and online forms excludes many of the people it aims to serve. Mapping generational barriers requires age data and consultation with older adults about their actual experience with digital tools.

Literacy barriers affect people across ages and contexts. Digital literacy is not the same as general literacy. A person may be highly literate in their first language but struggle with English-language interfaces, or may be comfortable with texting but not with filling out online forms. People with cognitive disabilities, visual impairments, or low formal education may face compounded barriers. Mapping literacy barriers is difficult because literacy is not captured in most datasets and is sensitive to ask about directly. Proxies like education levels or language spoken at home are imperfect but can signal areas where digital literacy support is likely needed.

The COVID-19 pandemic made digital access barriers urgently visible. Telehealth, online schooling, virtual social services, and remote work became default options — excluding those without digital access. Service gap mapping in a post-pandemic context must treat digital access as a basic infrastructure question, not an optional convenience.

Addressing digital access barriers requires investment in broadband expansion, subsidies for low-cost internet and devices, public access points (libraries, community centers), digital literacy training, and ensuring that essential services remain available through non-digital channels (phone, in-person, mail).

13.8 Cost Barriers

Cost barriers prevent people from accessing services they need because they cannot afford them. Even when services are technically available, if they are priced beyond reach, the gap persists.

Cost barriers are most obvious for private-market services: medical care in jurisdictions without universal healthcare, childcare, dental care, legal services, housing. A family that cannot afford $1,200/month for childcare faces a service gap even if a dozen childcare centers operate nearby. Cost barriers also exist in nominally "free" public services: bus fare to reach the service, time off work to attend an appointment, childcare costs during the appointment, or hidden fees (processing fees, late fees, replacement ID fees).

Mapping cost barriers requires integrating income data with service cost data. A map might show where low-income families live, where childcare is located, and what childcare costs relative to median household income in each area. A gap becomes visible when services are present but unaffordable.

Cost barriers disproportionately affect working-poor families. A household earning just above the poverty line may be ineligible for subsidies but unable to afford market rates. This is the eligibility-cost gap: earning too much to qualify for help, but not enough to pay full price. Mapping this gap requires detailed income distribution data, not just poverty rates. The family at the 25th income percentile faces very different cost barriers than the family at the 5th percentile.

Cost barriers are also temporal. People living paycheck-to-paycheck may be able to afford a service in theory — but not at the moment when they need it. A $100 medical appointment may be affordable over a month, but impossible to pay on the spot. Sliding-scale fees, payment plans, and emergency funds address this, but many services do not offer them.

Addressing cost barriers requires subsidies, sliding-scale fees, universal programs, and advocacy for public funding. It also requires transparency: many services offer financial assistance but do not advertise it, creating an awareness gap layered on top of a cost gap. Mapping cost barriers supports advocacy for funding increases, policy reform, and service redesign to reduce fees.

13.9 Cultural and Language Barriers

Cultural and language barriers prevent people from accessing services that are technically available, geographically accessible, and affordable — but feel unwelcoming, inappropriate, or incomprehensible.

Language barriers are the most tangible. A service offered only in English excludes non-English speakers. Even when translation is available, quality matters. A brief conversation through an untrained interpreter is not the same as care delivered in one's first language. A written form translated word-for-word may lose meaning or cultural context. Mapping language barriers requires knowing what languages are spoken at home in each area (census language data) and what languages are offered by services (which often must be collected directly from providers).

Cultural barriers are more complex. A service may be linguistically accessible but culturally inappropriate. A mental health program that does not recognize the role of family, community, or spiritual practices in wellness may feel alienating. A program designed for middle-class urban families may not resonate with newcomers, Indigenous people, or working-class communities. Cultural mismatch is not always visible in data and requires consultation with affected communities.

Some examples of cultural barriers:

A women's shelter that does not allow male children over a certain age excludes mothers of older sons.
A program that requires documentation excludes undocumented immigrants.
A service that schedules appointments during religious observance times excludes observant community members.
A youth program designed around mainstream recreational activities may not attract newcomer youth whose interests differ.
A seniors' program that assumes Western family structures may not fit immigrant seniors living in multigenerational households.

Mapping cultural barriers is challenging because the data is qualitative and context-specific. Approaches include:

Service user surveys or focus groups asking about barriers experienced
Community key informant interviews with cultural brokers, community leaders, or frontline workers
Utilization analysis showing which services are underused by specific cultural or linguistic groups relative to population size
Participatory mapping where community members identify which services feel accessible and which do not

Addressing cultural and language barriers requires intentional investment in culturally responsive services: hiring staff from the communities served, offering services in multiple languages, designing programs in consultation with cultural communities, and creating governance structures that include diverse voices. It may also require funding ethno-specific services — organizations led by and serving specific cultural communities — rather than expecting mainstream services to serve everyone.

13.10 Mapping Service Deserts

A service desert is a geographic area where residents lack reasonable access to essential services. The term is borrowed from "food desert" — areas without grocery stores selling fresh, affordable food — and has been extended to healthcare deserts, banking deserts, childcare deserts, pharmacy deserts, and mental health service deserts.

Service desert mapping identifies where service availability falls below a minimum threshold. Thresholds vary by service type and context, but common standards include:

Grocery stores / food access: More than 1-2 km from a full-service grocery store (urban), more than 10 km (rural), combined with low vehicle ownership and limited transit.
Primary healthcare: More than 5 km from a clinic or family doctor (urban), more than 30 km (rural), or areas where clinics are not accepting new patients.
Pharmacies: More than 2 km from a pharmacy (urban), more than 20 km (rural).
Banking services: More than 5 km from a bank branch or ATM, forcing reliance on payday loans or check-cashing services with predatory fees.
Childcare: Waitlists exceeding 12 months, or no licensed childcare within commuting distance.
Mental health services: No available counseling within 30 km, or waitlists exceeding six months.

Mapping service deserts requires combining supply data (where services are located) with need data (where vulnerable populations live) and access data (transportation, cost, eligibility). A simple dot map showing service locations is not sufficient. A service desert map must show:

Areas beyond reasonable travel distance from services
Populations most affected (low-income, seniors, people with disabilities, families with children, etc.)
Availability of alternatives (e.g., mobile services, telehealth)
Trends over time (are deserts growing or shrinking?)

Rural pharmacy deserts are common in Canada and internationally. As independent pharmacies close due to economic pressures, rural residents must travel long distances for prescription medications, medical advice, and over-the-counter health supports. For seniors, people with chronic illness, or those without reliable transportation, this creates real hardship. Some provinces have responded with mobile pharmacy services or incentives for rural pharmacy retention, but gaps remain.

Banking deserts occur in low-income urban neighborhoods and rural areas where bank branches have closed. Without access to mainstream banking, residents rely on payday lenders, check-cashing services, and money transfer businesses that charge high fees. This "poverty tax" extracts wealth from already vulnerable communities. Mapping banking deserts supports advocacy for postal banking, credit union expansion, or regulation of predatory lenders.

Mental health service deserts are widespread. Even in urban areas, the supply of publicly funded or affordable mental health services falls far short of demand. Waitlists of six months to a year are common. In rural areas, services may be entirely absent. The result is that people in crisis go untreated, with consequences for health, employment, housing stability, and public safety. Mental health desert mapping often reveals that services cluster in affluent areas where private-pay clients can sustain practices, while high-need, low-income areas have few or no providers.

Childcare deserts affect working families across urban and rural Canada. Licensed childcare spaces are scarce, waitlists are long, and costs are high. A neighborhood may have no licensed childcare within commuting distance, forcing parents to rely on unlicensed care, reduce work hours, or leave the workforce entirely. Childcare desert mapping has been used to advocate for public investment in universal childcare — showing that gaps are not isolated problems but systemic failures.

Service desert mapping is powerful for advocacy because it makes absence visible. It shifts the conversation from individual failure ("why didn't you access the service?") to systemic failure ("why is the service not there?"). It supports arguments for service expansion, policy reform, and equitable investment.

13.11 Synthesis and Implications

Service gap mapping reveals the distance between what communities need and what systems provide. It makes visible the structural inequities embedded in service availability: gaps that track along lines of income, geography, race, language, age, and ability. It documents the compound effect of multiple barriers — the rural senior who lives far from healthcare, has no car, cannot afford a taxi, and faces a six-month waitlist for the service they can theoretically reach.

Service gap mapping is not neutral documentation. It is a tool for accountability. When a map shows that low-income neighborhoods have fewer services, longer travel times, and higher costs than affluent neighborhoods, that is evidence of systemic inequity. When a map shows that services cluster in areas where needs are low and avoid areas where needs are high, that demands explanation and action.

Effective service gap mapping integrates multiple dimensions: access, awareness, eligibility, capacity, transportation, cost, culture, and language. A comprehensive gap map does not show only one barrier — it layers them, revealing where gaps are deepest and where interventions are most urgent. It pairs spatial analysis with qualitative knowledge, ensuring that maps reflect lived experience, not just data points.

Service gap mapping must also be paired with asset and strengths mapping (Chapter 5). Mapping only what is missing risks framing communities as deficient and overlooking the informal supports, grassroots initiatives, and community resilience that exist. A complete picture shows both the formal service gaps and the informal ways communities respond — mutual aid networks, volunteer-run programs, cultural associations, and neighbor-to-neighbor support.

The implications of service gap mapping extend across research, planning, advocacy, and coordination. For researchers, gap mapping provides evidence of unmet need and the structural patterns that create it. For planners, gap mapping informs where to locate new services, how to prioritize funding, and which populations are underserved. For advocates, gap mapping makes the case for policy change, increased funding, and equitable investment. For service providers, gap mapping reveals coordination opportunities, identifies duplication or absence, and supports referral pathways.

Service gap mapping also raises ethical responsibilities. Documenting gaps without advocating for solutions can feel extractive. Publishing maps that show where vulnerable people live without safeguards can enable harm. Ethical gap mapping requires transparency about methods, accountability to affected communities, and commitment to using findings to reduce gaps, not simply to describe them.

13.12 Service Ecosystem Assignment

Purpose: This assignment integrates service gap mapping with the service ecosystem mapping introduced in Chapter 5.7. You will document services in a defined area, identify gaps, and analyze how services work (or fail to work) together to meet community needs.

Materials Needed:

Base map of your chosen area (digital or printed)
Service inventory data (from 211, municipal directories, web research, or direct contact)
Census or demographic data for the area
Interview or survey data from residents or service users (if available)
Mapping tools (GIS software, or hand-drawn maps with annotations)

Steps:

Define your study area and focus. Choose a specific geography (neighborhood, small town, rural region) and a service domain (e.g., mental health, childcare, food access, housing support).
Map existing services. Identify all services in the chosen domain. Document locations, hours, eligibility criteria, capacity, costs, and languages offered. Create a map showing service locations.
Map need. Using census data, service utilization data, or community reports, map where people who need these services live. Include relevant demographics (income, age, family type, language, etc.).
Analyze gaps. Layer your service map and need map. Identify:
- Geographic gaps (areas far from services)
- Awareness gaps (services that exist but are not widely known)
- Eligibility gaps (populations excluded by program rules)
- Capacity gaps (services with waitlists or high rejection rates)
- Barrier gaps (transportation, cost, language, culture)
Map the service ecosystem. Show how services connect or fail to connect. Are there referral pathways? Do providers coordinate? Are there silos? Document relationships (strong, weak, absent) between providers.
Synthesize findings. Write a 3-4 page report summarizing:
- What gaps exist and where?
- Who is most affected?
- What systemic patterns create or sustain these gaps?
- What are the strengths (formal and informal) in the ecosystem?
- What actions could reduce gaps (new services, policy changes, coordination, funding)?
Present your findings. Create a 5-minute presentation with maps and key findings. Imagine your audience is a municipal council, a funder, or a community coalition.

Deliverable:

A set of 3-5 maps (services, need, gaps, ecosystem relationships)
A 3-4 page written report
A 5-minute presentation (slides or oral summary)

Time Estimate: 10-15 hours (including research, mapping, analysis, and writing)

Safety and Ethics Notes:

Do not publish maps that identify vulnerable individuals or sensitive locations (e.g., domestic violence shelters).
If interviewing residents or service users, obtain informed consent and protect anonymity.
Present findings in ways that support action, not stigma. Avoid deficit-only framing.
Share findings with the communities studied and with service providers who can act on them.
Acknowledge limitations in your data and methods. Be transparent about what you do not know.

Key Takeaways

Service gaps exist when need exceeds availability, accessibility, or adequacy — and gaps represent real harm, not abstract policy problems.
Multiple dimensions of gaps must be mapped: access, awareness, eligibility, capacity, and structural barriers including transportation, digital access, cost, and culture.
Service deserts — areas where essential services are beyond reasonable reach — are widespread for healthcare, banking, childcare, food access, and mental health supports.
Eligibility gaps exclude people who fall between program criteria, often trapping working-poor families in a gap where they earn too much for subsidies but too little for market rates.
Effective service gap mapping integrates spatial analysis with qualitative knowledge, pairs gaps with strengths, and holds systems accountable for equitable access.

Plain-Language Summary

Service gap mapping shows where people need help but cannot get it. Gaps happen for many reasons: services are too far away, too expensive, only available at bad times, have long waitlists, or have rules that keep people out. Sometimes services exist but people do not know about them, cannot afford the bus to get there, or feel unwelcome because of language or culture.

Service deserts are places where whole neighborhoods or towns lack basic services like healthcare, grocery stores, banks, or childcare. People living in service deserts face real harm — going without medical care, relying on expensive corner stores for food, or losing jobs because they cannot find childcare.

Good service gap mapping does not just point out problems. It shows who is most affected, explains why gaps exist, and helps people push for change — like new services, better transit, policy reform, or more funding. It also shows the strengths in the community, like volunteers and grassroots programs that step in when formal services fall short.

End of Chapter 13.

Chapter 13. Service Gap Mapping