JS Advanced/Syntax, Functions and Statements/Road Radar

function solve(inputArr){
    let currentSpeed=inputArr[0];
    let currentArea=inputArr[1].toLowerCase();
    let output="";
    function area(currentArea){
        switch (currentArea) {
            case 'motorway': return 130; break;
            case 'interstate':return 90;break;
            case 'city': return 50;break;
            case 'residential':return 20;break;
        }
    }

    function limit(ovLimit){
        if(ovLimit>0){
            ovLimit<=20 ? output='speeding':
            (ovLimit >20)&&(ovLimit<=40) ? output='excessive speeding': output='reckless driving';
        }
        return output;
    }
    let overLimit=limit(currentSpeed-area(currentArea));


    console.log(output);


}