11.   In many cases, signs are excessively large, threatening public safety by obstructing traffic vision, or because they are not well secured.

v. + vision >>共 411
have 24.70%
share 3.50%
blur 2.77%
outline 2.19%
lose 2.09%
offer 1.98%
see 1.72%
lack 1.36%
improve 1.31%
realize 1.25%
obstruct 0.57%
obstruct + n. >>共 206
justice 31.39%
effort 4.57%
investigation 4.37%
view 4.05%
police 4.05%
work 3.53%
traffic 1.87%
administration 1.56%
business 1.46%
search 1.25%
vision 1.14%
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