Healthcare · Facility Access Analysis

Where you open determines who gets care — and whether your facility is viable.

Drive time is the primary access metric in healthcare. Patients don't choose facilities that are hard to reach — even when those facilities are better. Hospital systems, urgent care operators, pharmacy chains, and specialty clinics all face the same location decision: where is there underserved population within the drive times that patients will actually tolerate? DriveZone maps that answer on real road networks.

ACCESS STANDARD · PRIMARY CARE

15 min

The federal HPSA threshold and clinical best-practice standard for primary care geographic access. Facilities sited outside this envelope face structural utilization headwinds regardless of quality.


Healthcare use cases

Five facility types that depend on drive-time access mapping.

01 · URGENT CARE

Urgent care center siting

Urgent care viability depends almost entirely on the density of population within a 10-minute drive. In a market where patients have an existing option within 8 minutes, a new center within 12 minutes will face structural utilization challenges. Map the 5-minute and 10-minute drive zones before selecting a site. Identify markets where the nearest competing center is 15+ minutes from a population cluster.

02 · HOSPITAL OUTPATIENT

Hospital outpatient facility

Outpatient facilities designed to extend a hospital's service area need to be sited at the drive-time boundary of the parent campus's primary service area — typically the 20–30 minute edge — to capture incremental patients rather than cannibalize existing volume. Drive-time overlap analysis between the outpatient location and the main campus is essential before committing to a lease or construction.

03 · PHARMACY CHAIN

Pharmacy chain expansion

Pharmacy chains use a 5-minute drive standard for primary site selection, targeting locations where 25,000+ residents are within that threshold. Age distribution within the polygon is a key differentiator — pharmacy utilization is significantly higher in populations with 20%+ of residents aged 65 and above. Competitor density (pharmacy locations per 10,000 residents) is the primary saturation metric.

04 · SPECIALTY CLINIC

Specialty clinic location planning

Specialty services — orthopedics, cardiology, oncology — tolerate longer patient drive times (20–30 minutes) because appointment frequency is lower and referral relationships drive volume more than proximity alone. Site analysis should focus on the 30-minute access polygon and the concentration of referring primary care physicians within that zone, in addition to population and age distribution.

05 · AMBULATORY SURGERY

Ambulatory surgery center

Ambulatory surgery centers require a sufficient base of commercially insured patients within a 20–30 minute drive, plus a cluster of surgical specialists willing to perform cases at the site. Drive-time analysis should be overlaid with income distribution data — ASC viability correlates strongly with the proportion of households above $75,000 in household income within the primary service area.

Feature breakdown

Access analysis tools built for healthcare location decisions.

Multi-zone access mapping (5/10/15/30 min)

Generate concentric drive-time polygons at 5, 10, 15, and 30 minutes simultaneously. Each zone renders as a distinct layer, revealing how the facility's access area expands across drive-time thresholds — the standard view for healthcare service area planning and CON (Certificate of Need) filings.

Demographic data — age distribution and income

Pull the demographic profile of each access zone: total population, population aged 65+, median household income, and household count. The 65+ segment and income distribution are the two leading indicators for most healthcare utilization models — available at Census block-group granularity inside the real drive-time polygon.

Competitor and facility overlay

Plot existing healthcare facilities within your access zones — urgent care centers, ERs, primary care clinics, or pharmacies, depending on your use case. Count facilities per zone and calculate the population-per-facility ratio against category benchmarks to identify underserved gaps or saturated sub-markets.

Campus-to-outpatient overlap analysis

Compare drive-time polygons between a main hospital campus and a planned outpatient site. Measure overlap to determine whether the outpatient facility will extend access to new populations or cannibalize existing patient volume. Essential for CON applications and board-level capital allocation decisions.

FAQ · Healthcare access

Questions healthcare planners ask.

What is healthcare access in terms of drive time?
Healthcare access is measured by the drive time from a patient's residence to the nearest healthcare facility. The federal standard designates any area where residents must drive more than 30 minutes to a primary care provider as a Health Professional Shortage Area (HPSA). For practical facility planning, 15 minutes is the widely accepted threshold for primary care access, and 10 minutes or less is the target for urgent care in competitive markets. Drive-time measurement is more accurate than distance because it accounts for road network geometry, traffic, and geographic barriers.
How far do patients drive to urgent care?
Urgent care patients typically drive 5 to 15 minutes, with the median around 8–10 minutes in suburban markets. Urban markets see shorter accepted drive times (5–8 minutes) due to higher facility density and traffic deterrence. Rural markets see longer drive times (15–25 minutes) by necessity. The practical implication for siting: a new urgent care center needs sufficient population within a 10-minute drive to be viable — measured on real road networks, not as a radius.
What is the standard service area for a hospital?
Hospital primary service areas are typically defined by a 15- to 30-minute drive time, capturing 60–70% of inpatient volume. Secondary service areas extend to 30–60 minutes. For outpatient and ambulatory services, the primary service area contracts to 10–15 minutes. Emergency services draw from a tighter geographic area than elective specialty services, which may attract patients from 60+ minutes away. Service area boundaries should always be defined by drive-time polygons on real road networks, not radius circles, to accurately reflect geographic access.
How do I analyze healthcare market access?
Healthcare market access analysis involves four steps: (1) Generate drive-time isochrones from candidate facility locations at 5, 10, 15, and 30 minutes to define primary and secondary service areas. (2) Measure the population within each polygon, segmented by age group (particularly 65+) and income level. (3) Count existing competitor facilities within each zone and calculate population-per-facility ratios. (4) Evaluate geographic coverage gaps — areas with significant population but no facility within a clinically appropriate drive time. DriveZone supports all four steps with real routing data and Census demographic overlays.

Healthcare markets

Explore drive-time access in key healthcare metros.

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Related reading

The access analysis methodology in depth.

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