Traffic Safety Impact Assessment Analyzer
Analyze traffic safety impacts and hazard mitigation for transportation designs
What You Can Do
You can conduct comprehensive safety impact assessments for any transportation design intervention—from intersection redesigns to speed reduction corridors. The skill guides you through hazard identification, risk quantification using established methodologies (conflict studies, crash prediction models), and evidence-based mitigation development. You'll produce defensible safety documentation suitable for audits, litigation, and project approvals.
Features
Systematically catalog hazard categories relevant to your specific design changes (conflict points, sight distance issues, speed impacts, access concerns)
Apply crash prediction models, conflict analysis, and speed assessment methods to establish baseline and post-design safety metrics
Automatically check design decisions against MUTCD, AASHTO, and warrant requirements for signals, markings, and control devices
Generate evidence-based countermeasures with effectiveness ratings tied to crash reduction factors from published literature
Structure safety comparisons to demonstrate improvement outcomes and support project approvals or retrofits
Evaluate protection levels for vulnerable users including refuge islands, signal timing, and dedicated facilities
Prioritize hazard mitigation for locations with documented crash histories using data-driven countermeasure selection
Format findings for compliance review, litigation defensibility, and stakeholder communication
Example Output
Intersection Redesign Assessment:
- Hazards identified: (5) Reduced sight distance at northwest corner, high-speed right-turns, pedestrian exposure during signal gaps, bicycle conflict at protected turn phase, sight obstruction by landscaping
- Risk quantification: Baseline crash prediction 2.8 crashes/year; post-design model 1.9 crashes/year (32% reduction)
- Recommended mitigations: Remove corner landscaping (sight distance recovery), add protected right-turn phase (reduces conflicts by 0.6 crashes/year per AASHTO), install 4-inch curb extension (pedestrian refuge, reduces exposure)
- Standards compliance: Signal timing meets MUTCD minimum 7.5-second pedestrian crossing clearance; turn lane meets AASHTO on-street design standards
Speed Reduction Corridor Safety Analysis:
- Hazard categories: Speeding vehicles (85th percentile 38 mph, 8 mph over target), midblock crossing exposure, sightline obstruction at driveways
- Countermeasure effectiveness: Chicane installation (4-5 mph reduction per ITE), edge line narrowing (perception-based reduction 2-3 mph), rumble strips (auditory alert)
- Combined estimate: 85th percentile reduced to 30 mph; crash severity metrics improve 35-40% for pedestrian impacts at predicted speeds
- Warrant documentation: Pedestrian volume 850/day exceeds 250-pedestrian threshold for protected crossing; midblock facility warranted per MUTCD Table 4C-1
What's Included
- SKILL.md instruction file with hazard taxonomy and analysis framework:
- Safety impact assessment template (hazard identification, risk quantification, mitigation matrix):
- MUTCD/AASHTO warrant checklist and standard cross-reference guide:
- Crash prediction model reference sheet (HSM 2nd Edition, local agency coefficients):
- Before-and-after safety comparison worksheet with documentation prompts:
- Countermeasure effectiveness database excerpt (crash reduction factors by facility type):
- Litigation-ready documentation checklist for design decisions:
Who It's For
- Traffic engineers and safety engineers conducting intersection or corridor redesigns
- Transportation planners evaluating high-crash location countermeasures
- Civil engineers preparing safety assessments for design approvals or audits
- Transit agencies analyzing signal priority or geometric modification impacts
- Municipal engineering staff documenting before-and-after safety improvements
- Consultants defending design decisions in peer reviews or litigation
Best For
- Intersection geometry, signal timing, or turn-lane redesigns
- Speed reduction and traffic calming corridor evaluations
- Protected bike lane, pedestrian refuge, or midblock crossing installations
- High-crash location countermeasure selection and prioritization
- Roundabout or all-way stop conversion feasibility assessments
- Safety audits and before-and-after project documentation
- Warrant analysis for traffic control devices (signals, stops, markings)
You might also like
Query your local Screenpipe instance to retrieve screen recordings, audio transcriptions, UI element accessibility trees, keyboard/mouse input logs, and productivity analytics. You can search by keywords, filter by content type (audio, OCR, accessibility, input), set time ranges, and extract structured data about your applications, meetings, and work sessions without sending data to external servers.
by az9713
This skill automates the detailed calculations required for electrical system design, converting connected loads to demand loads, sizing conductors and equipment per NEC standards, and analyzing voltage drop across feeders and branch circuits. You input project parameters and receive complete load schedules, equipment recommendations with ampacity ratings, conductor specifications, and code citations—eliminating manual calculation errors and enabling faster design iterations for permit-ready documentation.
by az9713
You can conduct comprehensive slope stability analyses that integrate site characterization, soil/rock properties, and quantitative calculations to evaluate both simple and complex slope geometries. The framework helps you identify critical failure mechanisms, calculate safety factors, assess groundwater and seismic effects, and develop technically defensible remediation recommendations suitable for permitting, design decisions, and stakeholder communication.
by az9713
You can systematically design test cases for any feature or system by analyzing requirements or code to extract test parameters, values, and business constraints. The skill generates a PICT model, executes pairwise testing logic to minimize test case count while maximizing coverage, and delivers a formatted test matrix with expected results—reducing manual test design effort while ensuring comprehensive scenario coverage.
by az9713
This skill deconstructs your writing samples to identify the specific patterns, personality markers, emotional range, language quirks, and formatting habits that make your voice uniquely yours. You'll receive a detailed voice DNA profile that includes your core communication style, signature phrases, emotional tone, formality level, and what you actively avoid—creating a blueprint that AI systems can use to replicate your authentic voice consistently across projects, platforms, and content types.
by az9713
You can decompose complex timber structures into analyzable load paths, trace forces from applied loads through members to supports, and calculate governing demands for each structural element. This skill helps you identify critical design points, apply appropriate load factors and duration adjustments, and create defensible design documentation that satisfies code officials and peer reviewers.
by az9713
You can compare building materials across embodied carbon, water usage, recyclability, supply chain impacts, and lifecycle costs—all grounded in industry standards like EN 15804 and ISO 14040/44. This skill transforms material selection from intuition-based guessing into data-driven specification, producing analysis outputs ready for client presentations, value engineering discussions, and regulatory compliance documentation.
by az9713
You can accelerate HVAC design workflows by inputting building parameters—envelope characteristics, occupancy data, climate conditions, and existing systems—and receiving calculated heating/cooling loads, equipment sizing recommendations, and zone-by-zone analysis. Claude organizes complex building data into actionable design parameters and specification summaries for client review, permit submission, and professional validation against ASHRAE and ACCA standards.
by az9713