Missouri Permit Test 7 Question Lane sharing is: Answers Encouraged. Dangerous. Allowed in heavy traffic to maximize lane space. Allowed if there is adequate lane space for both vehicles. Explanation Like other vehicles, motorcycles need a full lane width to operate safely. For this reason, lane sharing is generally prohibited. Answer Statistics 9.01 % of our users get this question wrong. This questions is relatively Easy. Missouri Permit Test This questions appears in the following tests: Idaho Practice Test