[46] What is clear, however, based on s. 2 of the Act, is that there is no general common law duty of care, based on proximity principles, owed by an adjacent property owner or tenant in respect of sidewalks that abut that person's property. (slaw.ca)
There's also health and safety legislation such as the Health and Safety at Work Act 1974 which, whilst not creating rights for employees to sue their employer, affect and influence the common law duty of care. (lawyer-monthly.com)
a personal injury claim for breach of the employer's common law duty of care (mainly under the law of negligence); (lawyer-monthly.com)