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Is highway expansion improving road safety, not just speed?

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What happened

India has significantly expanded its national highway network in recent years, reducing travel times on many routes. Road accident data, however, shows that higher speeds without matching improvements in driver behaviour, vehicle safety standards, and road engineering can offset some of the safety gains that better roads might otherwise deliver.

What the evidence says
✓

National highway network length has expanded significantly over the past decade.

What's unclear
?

Whether targeted safety engineering, like better signage and barriers, is keeping pace with expansion varies significantly by route.

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