This is the 3515th most frequent Russian word.
рассчитан
"Расcчитан" means "designed for" or "intended for" in English.
The word 'рассчитан' here is used to indicate that the bridge has been engineered to withstand a specific weight limit.
Этот мост рассчитан на большой вес.
This bridge is designed for heavy weight.
In this case, 'рассчитан' describes that the program duration is intended to span a month.
Программа тренировок рассчитана на один месяц.
The training program is planned for one month.
Here, 'рассчитан' signifies that the plan is suitable or intended for a specific group of individuals.