13. In an attempt to improve highway safety, Prunty County last year lowered its speed limit from 55 to 45 miles per hour on all county highways. But this effort has failed: the number of accidents has not decreased, and, based on reports by the highway patrol, many drivers are exceeding the speed limit. Prunty County should instead undertake the same kind of road improvement project that Butler County completed five years ago: increasing lane widths, resurfacing rough highways, and improving visibility at dangerous intersections. Today, major Butler County roads still have a 55 mph speed limit, yet there were 25 percent fewer reported accidents in Butler County this past year than there were five years ago.
Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.
步驟：事故數(shù)量沒減少 → 限速沒用
假設(shè)：事故的嚴(yán)重性沒變
反例：以前撞死人，現(xiàn)在撞傷人
證據(jù)：嚴(yán)重事故的變化
步驟：根據(jù)report很多人在超速 → 限速沒用
假設(shè)：超速的人沒減少;超速的人速度沒降低
反例：超速的人已經(jīng)大幅減少;以前超速超在80，現(xiàn)在超速超在65
證據(jù)：超速人數(shù)的對比;平均車速的對比
步驟：BC采取了一系列措施之后報告的事故少了25% → BC的措施起了作用
假設(shè)：沒有它因
反例：人口少了;私家車少了
證據(jù)：調(diào)查實際車輛數(shù)量變化
步驟：BC的措施起作用了 → PC模仿可以一樣有效
假設(shè)：兩城的交通狀況，路面條件相似
反例：我們的路已經(jīng)很寬很平了，十字路口都很開闊;真正導(dǎo)致我們事故多的是超速，酒駕……
證據(jù)：根據(jù)我們的實際事故來源分析決定合理的應(yīng)對方式
Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.
步驟：事故數(shù)量沒減少 → 限速沒用
假設(shè)：事故的嚴(yán)重性沒變
反例：以前撞死人，現(xiàn)在撞傷人
證據(jù)：嚴(yán)重事故的變化
步驟：根據(jù)report很多人在超速 → 限速沒用
假設(shè)：超速的人沒減少;超速的人速度沒降低
反例：超速的人已經(jīng)大幅減少;以前超速超在80，現(xiàn)在超速超在65
證據(jù)：超速人數(shù)的對比;平均車速的對比
步驟：BC采取了一系列措施之后報告的事故少了25% → BC的措施起了作用
假設(shè)：沒有它因
反例：人口少了;私家車少了
證據(jù)：調(diào)查實際車輛數(shù)量變化
步驟：BC的措施起作用了 → PC模仿可以一樣有效
假設(shè)：兩城的交通狀況，路面條件相似
反例：我們的路已經(jīng)很寬很平了，十字路口都很開闊;真正導(dǎo)致我們事故多的是超速，酒駕……
證據(jù)：根據(jù)我們的實際事故來源分析決定合理的應(yīng)對方式