Arlington is a generally safe town, though the areas of Dalworthington Gardens, Pantego, and the areas north of IH-30 are MUCH better developed and safer than other parts of the city. Six Flags Over Texas, Hurricane Harbor water park, Rangers Ballpark in Arlington and the Dallas Cowboys' new stadium are situated in a highly modernized, pleasant location along IH-30; as you travel immediately south from there, the area is quite industrialized and deteriorated. One would be wise not to venture through East Arlington on foot at night. The 'danger zone' essentially is surrounded by IH-30 to the north, IH-20 to the south, Cooper Street/FM 157 to the west, and State Hwy. 360 to the east.
Immediately east of 360, however, lies Grand Prairie, a highly industrialized and increasingly 'slummy' part of the Metroplex. If you are going to the horse races at Lone Star Park, or seeing a show at the adjacent Nokia Theater, you will not run into any problems, as these venues lie north of IH-30 and are quite isolated from the rest of Grand Prairie. As with East Arlington, just be very careful walking anywhere at night in Grand Prairie. To the south of Arlington sits Mansfield, which was rated as one of CNN/Money Magazine's "Best Places to Live" in 2007, and notsurprisingly is one of the safest areas in all the Metroplex.
Located on the north side of IH-20, Arlington's main shopping centers - The Parks at Arlington Mall and newly-built Arlington Highlands mall - are very safe zones that are constantly bustling with people due to all the restaurants and commerce in this area.
If you are visiting the campus of UT Arlington during the day you shouldn't run into any problems, though after hours even before sundown assault and robbery are not uncommon on the campus outskirts, particularly south and east of campus. As mentioned before, West Arlington Dalworthington Gardens and Pantego are by far the safest areas of the city, though they are mostly residential.
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