Eruv techumin


An eruv techumin for traveling enables Jews to travel on Shabbat or a Jewish holiday, without violating the prohibition of techum shabbat. They prepare food prior to Shabbat or the holiday on which they plan to travel farther than is normally allowed on such days. The only allowed method of transportation is walking.
Normally, a person may walk anywhere in their city or town on such days, but only within that area and up to 2000 cubits past the city limits. If they need to travel farther than that, they can leave some food in a certain location prior to that holiday or Sabbath. This will temporarily establish their home as at the location of the food, allowing to travel 2000 cubits from the food.
It is rare for contemporary Jews living in cities to need the eruv techumin to avoid violating the techum shabbat, as the techum shabbat automatically extends to cover all of an urban area.