San Diego's trolley network is carrying a postseason surge this week, with Metropolitan Transit System adding trips before and after the Padres' Wild Card games against the Chicago Cubs. The service plan concentrates capacity on the downtown approaches to Petco Park while using all four trolley lines to spread riders across the region.

For Wednesday's 7 p.m. Game 2, the UC San Diego Blue Line is scheduled every 7.5 minutes between San Ysidro and downtown and every 15 minutes between UTC and downtown before first pitch. Green and Orange Line trains run every 15 minutes from El Cajon. The Copper Line keeps normal service between Santee and El Cajon, where riders can transfer.

Postgame is the harder movement problem because tens of thousands of people leave within the same short window. MTS plans 15-minute service for roughly 45 minutes after the game, with additional trips where operators are available. The published last trains include 12:07 a.m. toward San Ysidro, 10:38 p.m. toward UTC, 11:36 p.m. toward El Cajon on the Green Line and 11:26 p.m. on the Orange Line.

The agency is also adding Route 901 bus service between 5:25 and 5:55 p.m. for the first two games. Free park-and-ride lots offer a way to intercept drivers outside downtown, including more than 400 spaces at Old Town, roughly 400 at El Cajon Transit Center and smaller inventories at Morena/Linda Vista, Grossmont, H Street, Balboa Avenue and Tecolote.

Payment has its own timing issue. Wednesday's adult one-way fare is $2.50 and remains valid for two hours. MTS fares rise Oct. 1, so an if-necessary Thursday Game 3 would fall under the new $3 adult fare. A rider loading stored value for a round trip needs $5 for Wednesday but $6 for Thursday.

Fans can tap a contactless bank card, phone or watch at a station validator, or use a PRONTO card or app. One payment method covers one person; a family cannot tap the same credit card repeatedly to buy several fares. Riders 18 and younger can use the Youth Opportunity Pass, and children 5 and younger ride free without a pass.

The three direct ballpark approaches are the Blue, Green and Orange lines, all feeding stations within walking distance of Petco Park. Copper Line riders must change at El Cajon. That transfer concentrates demand at a different point in the network, so the extra service is not only a downtown issue; missed connections late at night can determine whether an eastern rider reaches the final segment home.

Contactless payment trades simplicity for a limit: it does not yet include fare capping. Someone making additional trips could pay more than a day-pass ceiling, while PRONTO stored value applies the system's regular fare rules. MTS is urging riders to load value before reaching the platform because ticket-machine lines can become another bottleneck just before first pitch.

The schedule is a capacity promise, not a guarantee that every platform will stay uncrowded. Operator availability, the game's ending time and the direction of the crowd all affect the release. For MTS, the series is a compressed test of whether posted frequencies, fare instructions and final departures can turn a sold-out ballpark into predictable movement through downtown.