Harbor Boulevard Multi-Modal Corridor (Anaheim to Santa Ana)
At a glance: Graded 52 out of 100 (Tier 2: Multi-Lane Urban Arterial) across 7.4 miles in Orange County. High-volume six-lane Orange County north-south spine crossing resort districts, SR-22 ramps, and dense transit stops.
Why this corridor sits in Tier 2
Harbor Boulevard links Anaheim and Santa Ana across some of Orange County’s busiest bus-rapid-transit and pedestrian nodes. Even though the road is nearly straight and flat, continuous commercial driveways, freeway ramp terminals at SR-22, and nighttime pedestrian crossings yield elevated severe-injury crash shares.
Key roadway traits
- Resort-to-urban arterial transition
- SR-22 diamond ramp terminals
- High transit-stop pedestrian activity
Four-factor geometric & crash decomposition
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Connected highway & local crash profiles
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Other Tier 2 California corridors
Methodology & interpretation limits
Complexity Index combines horizontal curvature, sustained elevation grade, speed-transition demand, and 12-month historical reported crash concentration per corridor mile. Counts describe observational public records unadjusted for daily traffic volume and do not represent driving safety advice. Missing-coordinate collision records in surrounding cities are reported separately in live buffered queries and are never plotted at synthetic coordinates.
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