`tn_dmv_impaired_driving_crashes`

Pack: tn-dmv · Endpoint: https://gateway.pipeworx.io/tn-dmv/mcp

Count Tennessee injury and fatal traffic crashes involving alcohol or drugs, from the Department of Safety and Homeland Security crash file for calendar year ${CRASH_YEAR}. Each record is one person involved in an impaired-driving crash, carrying crash severity (fatal, suspected serious injury, suspected minor injury), the driver age group and gender, the investigating law-enforcement agency, date, time and coordinates. Answers “how many fatal DUI crashes in Tennessee”, “which age group is involved in the most alcohol-related crashes in Tennessee”, “drug-involved crashes by police agency”, or “impaired driving crashes by month”. Group results by age_group, gender, severity, agency, substance or month, and get a sample of the underlying records with latitude and longitude for mapping.

Parameters

Name	Type	Required	Description
`substance`	string	no	”alcohol”, “drugs”, “both” (alcohol and drugs together), or “either” (default — any impairment).
`severity`	string	no	Crash severity substring: “fatal”, “serious injury”, “minor injury”.
`age_group`	string	no	Age band substring as published, e.g. “21 to 24”, “80 & Up”, “16 to 17”.
`gender`	string	no	Published as “M” or “F”; “male”/“female” are accepted.
`agency`	string	no	Investigating agency substring. State troopers are published as “THP District 3 - Nashville” and similar, so “THP” selects all of them; city forces read “METROPOLITAN NASHVILLE POLICE DEPT”, “MEMPHIS POLICE DEPT”; counties read “SHERIFF”.
`group_by`	string	no	Breakdown dimension: ${Object.keys(CRASH_GROUPS).join(’, ’)}. Defaults to age_group.
`limit`	number,string	no	Max sample records returned alongside the counts (default 10, max 200).

Example call

Arguments

{
  "group_by": "substance"
}

curl

curl -X POST https://gateway.pipeworx.io/tn-dmv/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"tn_dmv_impaired_driving_crashes","arguments":{"group_by":"substance"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('tn_dmv_impaired_driving_crashes', {
  "group_by": "substance"
});

More examples

{
  "substance": "alcohol",
  "severity": "fatal",
  "group_by": "age_group"
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "tn-dmv": {
      "url": "https://gateway.pipeworx.io/tn-dmv/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

tn_dmv_impaired_driving_crashes