This is the 13477th most frequent Russian word.
направленные
Directed or targeted.
In this sentence, 'направленные' is used as a participle describing 'projects' as being targeted or aimed at a specific goal.
Проекты, направленные на улучшение экологии, получают поддержку.
Projects aimed at improving ecology receive support.
Here, 'направленные' qualifies 'measures' as being focused or intended to achieve safety.
Меры, направленные на безопасность, были приняты немедленно.
Measures aimed at safety were implemented immediately.
In this context, 'направленные' is describing 'programs' as those oriented toward the development of technology.