function roadRadar(array) {
    const zones = {
        'city': 50,
        'motorway': 130,
        'interstate': 90,
        'residential': 20,
        checker: function checker(speed, limit) {
            if (speed > limit && speed <= limit + 20) {
                console.log('speeding');
            } else if (speed > limit + 20 && speed <= limit + 40) {
                console.log('excessive speeding');
            } else if (speed > limit + 40) {
                console.log('reckless driving');
            }
        }
    };

    for (let i = 0; i < array.length; i++) {
        let speed = Number(array[i]);
        let zone = array[i + 1];
        zones.checker(speed, zones[zone]);
    }
}
roadRadar([200, 'motorway']);