School crossing protection Aurora, Illinois : an analysis of the school crossing problem, including recommendations for signs, signals, type of protection and other safety aids

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110 2 ‡aChicago Motor Club. ‡bSafety and Traffic Engineering Dept.
245 1 0 ‡aSchool crossing protection Aurora, Illinois : ‡ban analysis of the school crossing problem, including recommendations for signs, signals, type of protection and other safety aids.
260 ‡a[Chicago], ‡c1953.
300 ‡a13, [4] leaves : ‡bill. ; ‡c28 cm.
538 ‡aMode of access: Internet.
650 0 ‡aRoads ‡xSafety measures.
650 0 ‡aTraffic regulations ‡zAurora (Ill.)
650 0 ‡aSignals and signaling, Automobile.
CID ‡a102566368
DAT 0 ‡a20071206230939.0 ‡b20190307000000.0
DAT 1 ‡a20190308091626.0 ‡b2024-05-27T18:02:39Z
DAT 2 ‡a2024-05-27T17:30:02Z ‡b2019-05-24T20:00:02Z
CAT ‡aSDR-UIUC ‡dUNKNOWN ‡lprepare.pl-004-008
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