The poskim disagree about whether halicha havei hefsek (walking is an interruption). This question is relevant in cases where a person made a brocha on a mitzvah and plans to repeat the mitzvah at another location. Does the movement from one place to another constitute a hefsek that would make a new brocha necessary? Some poskim differentiate between situations in which the second mitzvah is merely a continuation of the first mitzvah and those in which the second mitzvah is a new mitzvah. For example, one who recited a brocha and sat in a sukkah would not have to say another brocha if he went to sit in a neighbor’s sukkah. The second sukkah is a continuation of the mitzvah of sitting in a sukkah, so a new brocha is not necessary. If, however, a person put on a second pair of tzitzis in a new location, the second pair is a new mitzvah that would call for a new brocha.
[שו"ע ח, יג, ומשנ"ב לג; ביאורים ומוספים דרשו, 46]