The phrase "and do not obstruct" is correct and usable in written English.
It can be used in contexts where you are instructing someone not to hinder or block a process, action, or pathway.
Example: "Please ensure that all pathways are clear and do not obstruct the emergency exits."
Alternatives: "and refrain from blocking" or "and avoid hindering".
However, be careful that nobody can be hurt and don't obstruct the traffic.
The court ruled that the veil moved with the driver's head and did not obstruct her vision.
Preliminary tests showed that intraspecific polymorphism was very low for these genes and did not obstruct phylogenetic signals (data not shown).
Such a common genetic variation should not be taken into account and does not obstruct the prevailing thought that women and men are to compete separately, meaning that there is a need for a dividing line.
The abdomen was opened to check whether the end of the arterial catheter was located below the renal arteries and did not obstruct the lumen of the aorta or the renal artery.
Tsvangirai has been trying to plant the seeds of a peaceful transition, promising key army officers compensation and property rights if they do not obstruct a change of government.
Life likes to distance itself from other anti-abortion groups, claiming: "We do not do vigils or protests outside clinics, we do not obstruct women and we don't tell them what to do".
"We also welcome the CAT's conclusion that the existing commercial terms of supply, particularly in relation to Sky's wholesale rate card, do not obstruct fair and effective competition in the retailing of Sky Sports across platforms".
An even better solution would be to remove barriers to entry for distributed generation, and to ensure that the established incumbents do not obstruct new micropower plants.As important as boosting generation is fixing the consumer market.
