The section between the Caguas toll and the town of Salinas is somewhat treacherous, and accidents have been known to occur there rather frequently. In that section the freeway begins a steep slope, followed by an equally steep downward spiral. Dense fog and low visibility are often present in this area, particularly during or just after a rain. Signs warning drivers to test their brakes while in that area of highway 52 are posted around and several emergency ramps are available going south. Puerto Rico's only rest area is on this expressway. The rest area has no relief, vending, or service facilities such as a restaurant or a gas station.
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This short segment connects PR-52 to PR-22 and makes intersections with PR-17 (Ave. Piñero), PR-23 (Ave. Roosevelt), which grants access to Plaza Las Américas (the largest shopping mall in the Caribbean), Ave. Domenech (access to Parque Luis M. Marín). It is mostly 4-lane in each direction.
The combined route of PR-18 and PR-52 is coterminous with the unsigned Interstate Highway PRI-1.
| This section requires expansion. |
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