North Torrey Pines Coastal Grade
At a glance: Graded 43 out of 100 (Tier 2: Multi-Lane Urban Arterial) across 7.9 miles in San Diego Coast. Coastal arterial combining a sustained 6% sandstone bluff climb, high recreational cyclist volume, and ocean-fog visibility shifts.
Why this corridor sits in Tier 2
Connecting Del Mar’s beach causeway up onto the Torrey Pines Mesa in La Jolla, North Torrey Pines Road introduces a sustained 6% climb alongside cliffs and state-reserve parking aprons. Crash records reflect speed differentials between climbing motor traffic, coastal cyclists, and beachgoers merging from shoulder stalls.
Key roadway traits
- Sustained 6% coastal bluff grade
- Shared bike-lane merges
- Marine layer glare transitions
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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